the new range up to 1600 a – new ideas for better circuit ...€¦ · incoming circuit-breaker,...

154

The new range up to 1600 A – New ideas for better circuit-breakers

The new Moeller circuit-breakers cover a range from 15 to 1600 A with just fourframe sizes. And they are optimally matched to one another. The wide applicationspectrum covers every requirement as Moeller has closely examined what everycustomer needs and implemented the appropriate solutions. Outstanding, forexample, is the continuous switching power range – which extends from thesmallest to the largest circuit-breaker or the modular system which can bematched without difficulty to suit the specific application. Thus, the circuit-breakers can be used universally – from the smallest of service distribution boards,to machine controls or motor starter combinations, up to large energy distributionsystems with a short-circuit breaking capacity of up to 150 kA.

4-pole circuit-breaker3-pole circuit-breaker

44090_14Kap_NZM.qxd 07.02.2008 10:31 Uhr Seite 154

For Moeller Electric Sales and Support call KMparts.com (866) 595-9616

155

50°C

90 mm

- 14 %

160 A300 A

- 25 %

105 mm 140 mm

500 A

Circuit-breaker NZM1 NZM2 NZM3 NZM4

Short-circuit breaking capacity

Icu to IEC/EN 60947

At 415 V

25 kA

36 kA

50 kA

100 kA

150 kA

Application range in A 15 – 160 15 – 300 125 – 630 315 – 1600

Nuber of poles 3/4 3/4 3/4 3/4

Rated voltage in V 690 690 690 690

Circuit-breakers for North America NZM1-NA NZM2-NA NZM3-NA NZM4-NA


Icu to UL489

At 480 V

25 kA

35/42 kA

85/100 kA


Icu to CSA 22.2 No 5.1

At 600 V

18 kA

25/35 kA

50 kA

Application range in A 1.2 – 125 1.6 – 250 125 – 600 400 – 1200

Nuber of poles 3 3 3 3


Dimensions in mm Width 3/4-polig 90/120 105/140 140/185 210/280

Height 145 184 275 401

Depth 68 103 120.5 138

Circuit-breakers for use all over the world

All circuit-breakers fulfil the demands for world-wide use. Thisapplies for the United States, Canada and the Chinese marketswith the certification to UL, CSA and CCC (China CompulsoryCertification).

In conjunction with the shipping classification authorities,Moeller also conducts testing in order to obtain the followingcertification: Lloyds Register of Shipping, Bureau Veritas, DetNorske Veritas, Polski Rejestr Statkow.

Full performance up to 50 °C

All circuit-breakers and switch-disconnector’s are designed tofacilitate operation up to an ambient temperature of 50 °Cunder full load conditions without need to reduce the ratedcurrent (derate). This is a comfortable prerequisite for simpleand practice relevant engineering with important safetycomponents.

No derating

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More power on the smallest space: NZM1 up to 160 A, NZM2 up to 300 A

Space in the control panel – and accordingly the costs – can be easily saved with the circuit-breakers NZM1 andNZM2. Instead of using the next larger size, now simplyuse the more compact further development from theNZM system series.

Two advantages at once: same performance with up to 25% reduced space requirement and up to 20% cost savings.



156

Rated VoltageUn

Short-circuit voltageUK

Rated powerSkVA

50

100

160

200

250

315

400

500

630

800

1 000

1 250

1 600

Circuit-breakers from the new C serieswith 36 kA Short-circuit breakingcapacity and nominal current from20 - 500 A are the correct choice forthe most frequently used standardapplications. The decisive factor forthe level of the short-circuit currentin the most widely used low-voltageradial networks is the capacity of thelow-voltage transformer.

With 36 kA breaking capacity, thehighest short-circuit currents of theconventional 630 kVA transformerclass – even with a double parallelconnection – are mastered. Even forpower networks with transformers upto 1600 kVA, the attractively-pricedswitches of the new C switch series arethe first choice.

They are derived from the high-performance type of the modern Moeller NZM series and also featuretheir good system features and simple handling characteristics. Thethermomagnetic releases can be adapted over a wide setting range to the permissible loading currents of the equipment to be protected. They can be equipped with accessoriessuited for every application in powerdistribution networks or for the equipment on electrical machines.

400/230 V

Rated currentInA

72

144

230

288

360

455

578

722

909

1 158

1 444

1 805

2 312

4 %Short-circuit current

IK “A

1 805

3 610

5 776

7 220

9 025

11 375

14 450

18 050

22 750

–

–

–

–

6 %

A

–

2 406

3 805

4 812

6 015

7 583

9 630

12 030

15 166

19 260

24 060

30 080

38 530

≤ 36

kA

“In practice the short-circuit current isattenuated by about 10 % due to the cable connection between the transformerand main power distribution. Thus, theComfort class is the perfect solution fortransformers up to 1600 kVA.”

Low-voltage power transformers

Economically dimensioned.Circuit-breakers with 36 kA

Ue = 400 V

SrT = 1000 kVA

ukr = 4 %

In = 500 A

NZMC3-A500

In = 300 A

NZMC2-A300

Ue = 400 V

SrT = 1600 kVA

ukr = 6 %Alternative:

In = 1443 A

NZMN4-VE1600

In = 2309 A

IZMB2-V2500

Icc = 36 kA

In = 160 A

NZMC1-A160



157

Circuit-breakers for DC applications.

Based on their utilization category DC-3the switches are suitable for universal useranging from photovoltaic to emergency-generating unit batteries to sophisticatedswitching and protection of DC shunt-wound motors in reverse and jog mode.

The new NZM-A circuit-breakers arethe ideal protective devices for DCcurrent networks with up to 750 Voperating voltage and operatingcurrents up to 500 A. The equipmentfeature with thermomagnetic releasesystems guarantees an exact r.m.s

sensing of the operating and faultcurrents. The contacts featuring adouble break system enable safeswitching in high-energy networkswith a short-circuit current of up to70,000 A.

Compact switch now up to 2000 A

The new 2000 A switch is particularly suitable for restrictedmounting spaces, where an open ACB requires too muchdepth as well as when operation via a large rotary handlethrough the control panel door is required. In comparison to an open ACB it is an attractively priced offer, equippedwith a time-discriminating universal control unit for comprehensive system protection, line protection as well as protection for machines and transformers.

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Icc = 60 kA DC

Ue = 750 V DC

In = 500 A

NZMH3-A500


158

Switch-disconnector 4-poleSwitch-disconnector 3-pole

Excellent under load –Switch-disconnector’s for safe switching under load

Even under load conditions the Moeller switch-disconnector operates safely. Thereason: the 3- or 4-pole snap-action closing mechanism which is also applied withcircuit-breakers. That’s why the rated short time withstand current is so high andcan handle currents up to 150 000 A. The long lifetime with up to 7 500 switchingoperations in AC3 mode enables usage as a motor switch, in order to switch largemotors during operation. Application as a main switch with an emergency-stopfunction via a remote pushbutton is easily implemented in conjunction with thedouble early-make auxiliary contacts and undervoltage release. This in conjunctionwith the UL/CSA approvals is a prerequisite for use in process and processingmachines which are destined for export.



159

HIV

New in the range:Specially for the North American market: Molded Case switches featuring a short-circuit release for self-protection. Thus, the use of a back-up fuse is no longer required in many applications, e.g. as a main switch.

Main switch application

The main switch application with anemergency-stop function up to 1600 Aconform to IEC/EN 60204-1, VDE 0113Part 1 can be easily and cost-effectivelyimplemented with the new Moellerproducts.

The voltage is switched off on allcurrent conducting circuits are whenthe switch is switched off using theundervoltage release with twointegrated early-make auxiliarycontacts. Safety is guaranteed at alltimes in this manner when the switch isin the Off position.

The early-make auxiliary contacts canalways be installed – even if the circuit-breaker is equipped with a toggle-leveror rotary drive.

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rsSwitch-disconnector PN1/N1 PN2/N2 PN3/N3 N4Application range in A 63 – 160 160 – 250 400 – 630 800 – 1600

Number of poles 3/4 3/4 3/4 3/4


Switch-disconnectors for North America NS1-NA NS2-NA NS3-NA NS4-NAApplication range in A 63 – 125 160 – 250 400 – 600 800 – 1200

Number of poles 3 3 3 3


Dimensions in mm Width 3/4-polig 90/120 105/140 140/185 210/280

Height 145 184 275 401

Depth 68 103 120.5 138



160

Protection flexibility:Systems, generators, motors

NZM protects systems

Circuit-breakers NZM protect entiresystems as well as cables and wiring onall levels, from the main distributionboard right up to the loads. As theincoming circuit-breaker, the NZM willof course also provide secondary sideoverload protection for the transformer.A variant with modified short-circuitreleases also enables a power networkwith time selectivity.

NZM protects motors

Circuit-breakers NZM protect motorsand cables against overloads and short-circuits. The short-circuit release of theNZM can be set to 12 to 14 times therated motor current to ensure thatstarting current peaks are not shut downby the protective device. Circuit-breakers NZM provide reliable andphase failure sensitive protection formotors from 15 A to 1400 A.

NZM protects generators

Even when the generators have difficultygenerating two to six times the continu-ous current, it does not present a problemfor the NZM. It can master shutdown ofeven the smallest short-circuit currentswithin a few milliseconds. A settingwhich ignores short-circuit currents forup to 1 s is possible for special tasks.

NZM protects with faultcurrents

The mains and auxiliary voltage indepen-dent residual current circuit-breaker tripsas soon as the set rated fault currentsare exceeded. The module is pulse currentsensitive and also discriminative.

The IΔN = 30 mA in this function modulealso ensures personnel safety.

1

2

2

3

4

1

3

4



161

NZM4

NZM2

100 kA 80 kA

PKZM0

NZM3

NZM1

100 kA

10 A 160 A

25 kA

630 A300 A

1600 A

www.moeller.net/curves

Trip electronics featuring micro-processors enhance the operatingcontinuity

The microprocessor controlled digitalelectronics determine r.m.s. values for the load current to be monitored. In contrast to analog electronics, anyharmonics which may be in the powergrid will be correctly evaluated and donot cause premature and unexpectedtrips. This prevents a standstill.

Special components simulate a thermalmemory even when the switch tripsduring a currentless period due to a

load overload. Thus, safe protection ofthe connected equipment is guaranteed– even when the device is switchedback on after a brief cooling off phase.

All electronics have been routinely tested and preaged in an oven. This corresponds to a real operating time of about six months. Thermocouplesguarantee a safety-oriented trip of thecircuit-breaker in the improbable casethat an inadmissible overtemperature is due to the electronic components.

Selectivity table

Circuit-breakers NZM achieve selectivityduring a short-circuit even withoutadditional electronic short-time delayeddevices. For example, the 1000 A circuit-breaker in combination with a 300 Aoutgoing circuit-breaker is fully selectiveup to a maximum existing short-circuitcurrent of 100 000 A. Even two highenergy incoming supplies of e.g. twoparallel 2 000 kVA distribution transfor-mers are cost-effective and are simpleto engineer with high levels of supplyreliability.

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General specifications:Company: Moeller GmbH

Installation: Energy distributionEditor: John Public

Date: 17.3.2004Line: 415 V/50 cps

Tripping graphs

Trip

pin

g t

ime

Current [Amps]

Simpler visualisation, comparison and documentation of characteristic curves

The free-of-charge characteristic curve programsupports documentation of the circuit-breakerswhich are used in completed switchgear systems.All setting parameters can be easily determined,graphically displayed and printed-out. A directcomparison of circuit-breaker NZM and circuit-breaker IZM in combination with h.b.c. fuses enablesassessment of the selectivity for the overload andtime-delayed overcurrent range.



162

System benefits – the universal accessory range

The method of functioning and fitting of theaccessories is identical for every size. Contactelements from the RMQ-Titan® range of control circuit devices are used for the entire NZM range of circuit-breakers.

This has many advantages: it ensuresa reduction in the variety of types, adecrease in ordering expense andeffort and consequently, simplerinventory management. The contactelements can be simply clipped-onfrom the front. The positiondetermines the function: signallingcontact or trip-indicating auxiliary

contact, and like all auxiliary contactsand releases, they are available withterminal bolts or spring-loadedconnections, for circuit-breakers orswitch-disconnector’s. The new twincontacts provide twice as manyauxiliary and signalling contacts in thesame amount of space. They featurespring-loaded terminal connections.

Flexible solutions for safety andinterlock functions

Effective shunt or undervoltagereleases, combined also with early-make auxiliary contacts for Emergency-Stop functions or load-shedding circuits,offer elegant solutions for a wide rangeof functioning applications. All contactpoints are available with sturdy boltconnection.



163

The plus-minus slot can be used like the Pozidriv slot to apply a high torque and providesimproved centring performance and a lower high loading pressure to an area. Furthermore, it can be used with several tool designs and is particularly suitable for high-maintenance devices.

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>100% Ir Trip Isd

Unbalance

A single tool for all screws

The heads on all screws used in thecircuit-breakers – with the exception ofthe main connection screws – feature aplus-minus profile. The advantage is thata fast screw driving machine can be usedwith the single Posidriv 2 screwdrivertool, or alternatively, a flat-bladed screwdriver can also be used. This appliesfor all fixing screws, auxiliary connectionterminals, as well as hinged flaps andcovers and also all setting buttons.

All messages in detail – the Data Management Interface

It does not matter if the causes for atrip or a warning message withunbalance are required, or if all phasecurrents are to be displayed directly on-site and corrective actions are to beimplemented with a critical load state.The Data Management Interface (DMI)always signals exact details. The relayoutputs of the DMI signal up to 6different messages. All trip causes areavailable as group signals and Ii, Ir, Isd,I2t, and Idn detail signals. The trip cause,phase state, switch setting as well asdate and time can be accessed via the4-line display. Representation of theactual phase currents can be in absoluteor relative (% Ir) terms. Warnings withregard to the load status are issued at70 %, 100 % and 120 % Ir. Thus, the DMI is perfect for direct display on-siteor for the integration in higher-levelenergy management concepts.



164

Variable operation – toggle, turn, automatic operation

The door coupling rotary handle – for uniform, flexible solutions

The base plate is the same for every door coupling rotary handle, this means fasterfitting due to the identical drilling diagram. The switches can also be fitted verticallyor horizontally in the control panel.

“Circuit-breakers and switch-discon-nectors from Moeller impress mebecause of their wider range ofinstallation and operating features.“

Door coupling rotary handles – ergonomic switching

Four different shaft lengths enabledevice installation in various controlpanels and housings up to a depth of 600 mm. A cost-effective and simpleto mounting solution is available forthe narrowest component mountingwhere the switch makes direct contactwith the cover.

The main switch types – the side operator

Up to 1600 A, the side wall operatorenables the switch to be operatedfrom the right or left hand side asdesired. Optional fitting of ourmounting bracket results in optimumuse of space in the control panel. Themounting plate can thus be used forother machine control elements.



165

Operator on rear for switches up to 300 A rated current

If a power disconnecting device with door coupling rotaryhandle is to be used in a confined space: up to 300 A ratedcurrent can be quickly mounted using the compact mechanical features and comfortably operated using the solid rotary handle. All switch variants from the NZM1 andNZM2 range – regardless of if they are circuit-breakers orswitch-disconnectors – can be combined with a rear operator.

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Application related locking

Multiple versions of the door coupling rotary handle provideindividual solutions.

• The standard handle features automatic handle positionlocking, which facilitates comfortable locking of control panel doors even with differing switch positions.

• The second version can be locked with padlocks andautomatically locks the doors when closed. This is the typicalapplication for a main switch as the control panels can onlybe opened in the Off position.

• With the third version, there is an additional locking featuredirectly on the switch. For example, the switches can belocked individually in a complex energy distribution system.

Handles in red/yellow contrasting colours are available for theemergency-stop function.

The comfortable remote operator for synchronisationtasks

The spring-powered actuator permits closing delays of 60 or100 ms, thereby also allowing application in the field ofsynchronization. Short function sequences and fewer partsensure a high degree of stability and a long service life. Safetyis also emphasized here by the sealing option for the Autofunction and by the facility for padlocking the remote oper-ator.

The economic remote operator for standard tasks

The switching time of the new remote operator is a max. ofjust 170 ms and can thus be used with standard applicationsfor automated or remote operated energy control.The folding mounting plate enables a quick inspection of theinstalled auxiliary contacts and voltage releases. The narrowconstruction design of the remote operator requires no addi-tional mounting area. It is equipped with a selector switchwhich guarantees a secure differentiation of the connectedpositions. Furthermore, the switches can be securely lockedin the 0 setting using padlocks.



166

21

22

13

14

The withdrawable unit – signalling of states

As usual, Moeller offers plug-in andwithdrawable units in addition to thefixed mounted option. It makes it easier to quickly adapt to malfunctionsor increases in the rated current rangeand thus avoid long downtimes. Uniform racking handle operation forwithdrawable units enhances operatingsafety and ensures a test position forfunction testing without having toswitch the main contacts.

The “Inserted“, “Test“ and “Retracted“positions can be remotely signalledusing auxiliary switch contacts RMQ.

Mesh network switch providesenhanced trip security

Moeller offers two solutions for themesh network switch application: a shunt which functions as specified in a range from 10 to 110 % of the control voltage, and a special shuntrelease which also provides trip securityin conjunction with a capacitor unit, if up to 12 hours have elapsed since the power loss.

Safe to operate, easy to handle

The plug-in unit – open to possibilities

The plug-in feature enables rapid anduncomplicated exchange of circuit-breakers without having to shutdownthe entire system. The same widths forthe fixed and withdrawable circuit-breakers ensure simple engineeringduring the system design phase.

A very visible isolating distance can beimplemented in addition to the isolatingcharacteristics by the use of plug-inbreakers. The open plug-in contacts arefinger-proof (IP2X).

If the system is to be modified at a laterdate, the use of plug-in sockets forreserve outgoers is recommended.



167

a) b)

Parallel operation: smart technology

Parallel drives for switches up to 630 Aenable simultaneous switching with just a single action – e.g. with main orauxiliary circuits. In this manner themain and auxiliary circuits can beswitched simultaneously with processand processing machines.

Interlock with Bowden cable technology

Mechanical interlock componentsenable the interlocking of two or threeswitches, equipped with rotary handles(a) or remote operators (b), which canalso feature different frame sizes. TheBowden cable technology enables freeinstallation of the switches in differingpositions. The switches can be installedup to 1 m apart – e.g. in differentcontrol panel sections.

Switches in enclosures – certified safety

The transparent enclosures availablewith protection degrees up to IP 65 provide mechanical protection withimpact resistant polycarbonate. The 3- and 4-pole switches areequipped ready for installation withrotary handles. Additional isolatedterminations for a 4th or 5th conductorare also available.

Busbar adapter

Busbar adapters featuring space-savingcontacts enable installation of manydevices in confined spaces. They can beused universally on every 60 mm busbarsystem. The three frame sizes for 160,250 as well as 550 A can be snapped on.

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“You realise the competence of thepeople working for Moeller withevery solution. All the features yourequire are implemented.“



168

1

4

2

5

3

6

Clever mounting and connection increases economy

1

2

3

4

5

6

Back of hand or finger-proof

Cable-lug, box-terminal or tunnelterminal, it does not matter as coverswill always ensure that they areback-of-hand proof.

Fingerproof to IP2X, conform toIEC/EN 60204-1 for main switches isfast and easy to implement. The newadditional covers can be matched toevery cross-section.

Easy to connect

Circuit-breakers NZM and switchdisconnectors PN, N can be connectedwith and without cable lugs, braidedcopper bands or copper busbars. Andthere’s another special feature: Specialnarrow cable lug versions are availablefor bolt connection of roundconductors up to 240 mm.

Screw terminal

The screw terminal is the most attracti-vely priced solution for the connectionof cable-lugs, flat drilled metal strip orcopper busbars.

Box terminal for copper cable

Box terminals guarantee secure contactfor the direct connection of 1 – 2 flexiblecopper conductors or flat strip. WithNZM2 and NZM3, the top of the boxterminal can be opened for easyinsertion.

Terminal for aluminium and copper cables

The terminal area of these specialterminals is tunnel-shaped to preventthe typical “flow-properties” ofaluminium under great pressing power.Up to four copper or aluminiumconductors can be connecteddepending on the type.

Connection preparation for multiple conductors

It enables the connection of up to sixconductors with cable lugs per phase.Auxiliary busbars are no longerrequired.

Rear connection

This method of connection allows busbars or round conductors to be connected at the rear. Partitioning ofthe switch area, terminal area andoperator area is carried out without difficulty.



169

45 mm

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1 x 17.5 mm

3 x

17.5 mm

n x 17.5 mm

Clever installation and terminations

Fast and efficient top-hat railinstallation with the use of a clip plate.Just simply attach the clip plate fromthe rear onto the circuit-breaker andclip it onto the top-hat rail. No need to drill holes in the mounting plate.

The particular advantage of the smallNZM1: the “standard dimension”enables side-by-side installation withminiature circuit breakers in servicedistribution boards.

The spacer – saving time andexpense

All switches including the accessoriesfitted on them were designed with thegrid spacing of the spacer. Differentdepths of switch are evened-out simplyby means of inexpensive, rapidly fittedspacers.

The result is a cost-effective alternativeto the door coupling rotary handle withextension shaft for external operationof the circuit-breaker.

This worldwide innovation gains timeand saves expense.

Control circuit terminals

The control circuit terminals are simply screwed onto the respectiveconnection type. The tap-offs forvoltage meters, control transformersand undervoltage releases areimplemented quickly.

Insulating surrounds – always the right fit

The insulated surround always fits. Regardless of if thecircuit-breaker is equipped with a toggle-lever, rotarydrive or remote operator. It is unnecessary to keepdiffering insulating surrounds in stock. It is the cost-effective method to operate circuit-breakers externallywhen the control panel door is closed.

Insulating surround XBRS for the toggle lever

Narrow design for space-saving side by side mounting.The insulating surrounds have IP 40 degree of protection andthe inscription labels can be simply clipped in.



170

Diagnostics included! NZM circuit-breakers

“System diagnostics was never soeasy to implement. That's whatI call real Plug & Work!“

NZM circuit breakers provide on-site diagnostics – easily accessed from its clever electronic trip unit

NZM circuit breakers protect people, installations and power supply networks.Faults are immediately recognised and reliably disconnected – but the followingmust be clarified in order to quickly re-establish the power supply safely.• Was there an overload or short-circuit?• Which phases were affected?• Which chain of events led to the trip?• Have settings been adjusted in the meantime?• Is it possible – and more importantly – is it safe -

to re-close the circuit breaker and restore power?

In such events NZM circuit breakers from Moeller provide valuable insight withdiagnostic information that’s quickly and easily accessible with a standard PC.

NZM provides the quick overview –directly onsite

NZM delivers all the necessary diagnostics information via an integrated interface directly to a PC or laptop. Configuration inadvance is not necessary.

The connection is quickly established:Simply plug the connection cable intothe front of the intelligent electronictrip unit – and you are ready to go. This diagnostics access is possible at any time, regardless of if the system is operational or not.



171

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NZM validates protection settings at a glance

With NZM a power disruption can be limited to the areas whichare directly affected by the fault using a selective design concept.The effects and costs of a malfunction are minimised withoutmaking any compromises in safety.The active tripping curve and the planned selectivity can beexactly represented in the NZM-XPC-SOFT based on the selectedswitch settings and tripping characteristic. Selection of theoptimum protective parameters and validation of the desiredselectivity is supported during the commissioning phase by adirect comparison of the upstream and downstream protectivedevices. Possible fault sources are immediately indicated bya visual comparison of the individual breaker settings. Latermodifications are clearly illustrated. Even the matching of theprotection settings of a specific motor characteristic is illustratedby graphic optimisation of the inrush-, starting- and operatingcurrent of the motor.

NZM load analysis for valuable resource management

Electrical energy is a valuable and critical resource. Each cleverNZM is capable of being transformed into a load analysis toolwith the help of NZM-XPC-SOFT. Simply plug-in the PCconnection cable at the electronic trip block and both graphicaland data-logging trend measurement commences.The effective values of all phases can be recorded over the timeperiods of minutes, hours or even days. Power distribution istherefore transparent. Measurements and trends over defined periods can be comparedor processed further using the protocol function to generatefiles for MS Excel©.Evaluating the performance of manufacturing processes andassessing preventative maintenance of motors are examples ofimportant resource management functions easily carried outwith this simple software.

NZM provides diagnostic analysis after a fault thateliminates ambiguity and error!

The cause of a trip is documented by the clever circuit-breakerNZM in its internal memory. Ten events are logged in detailwhich enables the source of the fault to be quickly identifiedbased on hard facts. The information is clearly andunambiguously displayed onsite with the NZM-XPC-SOFTsoftware. It can be saved as a file, printed and sent for thepurpose of analysis.The NZM event protocol eliminates ambiguities and “human error” of keeping notes during the entire lifecycle of the circuit-breaker and the low-voltage installation. Evenreplacement circuit-breakers can be identified and tracedbased on their serial number.

The NZM-XPC-SOFT supports nine languages for maximumsafety and operating availability world-wide.



172

System OverviewCircuit-Breakers, Switch-Disconnectors



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Circuit-breakers, switch-disconnectors 1

IP2X finger proof 2For box terminals

Terminal shroud, knockout 3

Connection shroud 4Protection against direct contact withconnection of cable lugs, busbars or when tunnel terminals are used

IP2X finger proof 5For cover

Tunnel terminals for Al and Cu cables 6Standard with control circuit terminal

Box terminals 7Standard feature of frame size 1 Mounting within the switch enclosure

Control circuit terminal 8For two connection positions top or bottom

Plug-in and withdrawable unit 9

Clip plate 10

Rear side connection 11

Spacer 12

Standard auxiliary contact 13Switches with the main contacts.Performs signalling and interlock tasks

Trip-indicating auxiliary contact 13General trip indication with trip due to overload or short-circuit as well as voltage release

Rear operator 14

Main switch rotary handle 15for side panel mounting

Door coupling rotary handle 16, 18• lockable• with door interlock

Extension shaft 17Can be cut to required length

Rotary handle 19• lockable

External warning/designation label 20

Insulating surround 21For use on the enclosure with lead through toggle lever, rotary drive and remote operator

Remote operator 22For switch on/off and reset by permanent or three-wire control

Toggle level locking device 23

Side lever handle 24In preparation

Data Management Interface (DMI Module) 25• Access to diagnostics and operational data • Detection of current values • Parameterisation and control of the

circuit-breaker with electronic releases

EASY-LINK-DS data plug 26

PROFIBUS DP/CANopen/ 27DeviceNet interface

Early-make auxiliary contact 28For interlock and load shedding circuits as well asfor early-make switching of theundervoltage release with main switch/Emergency-Stop applications

Voltage release 25 28Undervoltage release • non-delayed • off-delayed Shunt release

Time delay unit for 29undervoltage releases

Circuit-breakers, switch-disconnectors

Switch-Disconnectors

3-pole IEC 4-pole IEC IEC 3-pole UL/CSA

rated current =Rateduninterruptedcurrent

In= Iu

A

2 switch positions1

3 switch positions2

2 switch positions1

3 switch positions2

rated current =Rateduninterruptedcurrent

In= Iu

A

3 switch positions2

63 PN1-63 N1-63 PN1-4-63 N1-4-63 63 NS1-63-NA100 PN1-100 N1-100 PN1-4-100 N1-4-100 100 NS1-100-NA125 PN1-125 N1-125 PN1-4-125 N1-4-125 125 NS1-125-NA160 PN1-160 N1-160 PN1-4-160 N1-4-160

200 PN2-200 N2-200 PN2-4-200 N2-4-200 160 NS2-160-NA250 PN2-250 N2-250 PN2-4-250 N2-4-250 200 NS2-200-NA400 PN3-400 N3-400 PN3-4-400 N3-4-400 250 NS2-250-NA630 PN3-630 N3-630 PN3-4-630 N3-4-630 400 NS3-400-NA800 – N4-800 – N4-4-800 600 NS3-600-NA1000 – N4-1000 – N4-4-1000 800 NS4-800-NA1250 – N4-1250 – N4-4-1250 1000 NS4-1000-NA1600 – N4-1600 – N4-4-1600 1200 NS4-1200-NA

Terminals standardTerminal screws as accessories

Terminals standardTerminal screws as accessories

IEC/EN 60947-2UL 489

1 I, 0 ; Cannot be remotely operated2 I, + , 0 ; Can be remotely operated with U/A voltage release



174

1) Applies for NZM1, 2) applies for NZM2 and NZM3, 3) 60% release on neutral pole

Newin therange

Thermomagnetic release

Rated current = rateduninterrupted current

Setting range overloadrelease

Short-circuit releaseadjustable

Circuit-breaker withBasic switching capacity 25 kA

at 415 V 50/60 Hz

Part No. Part No.

ln=luA

lrA 3-pole 4-pole

Standard terminals, terminal screws as accessories

20253240506380

100125160

15-2020-2525-3232-4040-5050-6363-80

80-100100-125125-160

350350350

320-400300-500380-630480-800

600-1000750-1250

1280

NZMB1-A20NZMB1-A25NZMB1-A32NZMB1-A40NZMB1-A50NZMB1-A63NZMB1-A80NZMB1-A100NZMB1-A125NZMB1-A160

NZMB1-4-A20NZMB1-4-A25NZMB1-4-A32NZMB1-4-A40NZMB1-4-A50NZMB1-4-A63NZMB1-4-A80NZMB1-4-A100NZMB1-4-A125NZMB1-4-A160

Terminal screws standard

20253240506380

100125160160200200250250300300

15-2020-2525-3232-4040-5050-6363-80

80-100100-125125-160125-160160-200160-200200-250200-250240-300240-300

350350350

320-400300-500380-630480-800

600-1000750-1250960-1600960-1600

1280-20001280-20001500-25001500-25002000-25002000-2500

---------

NZMB2-A160-

NZMB2-A200-

NZMB2-A250-

NZMB2-A300-

---------

NZMB2-4-A160NZMB2-4-A160/100 3)NZMB2-4-A200NZMB2-4-A200/125 3)NZMB2-4-A250NZMB2-4-A250/160 3)NZMB2-4-A300NZMB2-4-A300/200 3))

Standard terminals

20253240506380

100125160200250300

15-2020-2525-3232-4040-5050-6363-80

80-100100-125125-160160-200200-250240-300

350350350

320-400300-500380-630480-800

600-1000750-1250960-1600

1280-20001500-25002000-2500

---------

NZMB2-A160-BTNZMB2-A200-BTNZMB2-A250-BTNZMB2-A300-BT

-------------

Terminal screws standard

320320400400500500

250-320250-320320-400320-400400-500400-500

1920-32001920-32002400-40002400-40003000-50003000-5000

------

------

Standard terminals

320400500

250-320320-400400-500

1920-32002400-40003000-5000

---

---

Electronic releases, terminal screws standard, terminals as accessories

630630800800

100010001250125016001600

315-630315-630400-800400-800

500-1000500-1000630-1250630-1250800-1600800-1600

1260-50401260-50401600-96001600-9600

2000-120002000-120002500-150002500-150003200-192003200-19200

----------

----------



175

Cir

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Circuit-breaker withComfort switching capacity 36 kA

at 415 V 50/60 Hz

Circuit-breaker withNormal switching capacity 50 kA

at 415 V 50/60 Hz

Circuit-breaker withHigh switching capacity 1001)/1502) kA

at 415 V 50/60 Hz

Part No. Part No. Part No. Part No. Part No. Part No.

3-pole 4-pole 3-pole 4-pole 3-pole 4-pole

NZMC1-A20NZMC1-A25NZMC1-A32NZMC1-A40NZMC1-A50NZMC1-A63NZMC1-A80NZMC1-A100NZMC1-A125NZMC1-A160

NZMC1-4-A20NZMC1-4-A25NZMC1-4-A32NZMC1-4-A40NZMC1-4-A50NZMC1-4-A63NZMC1-4-A80NZMC1-4-A100NZMC1-4-A125NZMC1-4-A160

NZMN1-A20NZMN1-A25NZMN1-A32NZMN1-A40NZMN1-A50NZMN1-A63NZMN1-A80NZMN1-A100NZMN1-A125NZMN1-A160

NZMN1-4-A20NZMN1-4-A25NZMN1-4-A32NZMN1-4-A40NZMN1-4-A50NZMN1-4-A63NZMN1-4-A80NZMN1-4-A100NZMN1-4-A125NZMN1-4-A160

NZMH1-A20NZMH1-A25NZMH1-A32NZMH1-A40NZMH1-A50NZMH1-A63NZMH1-A80NZMH1-A100NZMH1-A125NZMH1-A160

NZMH1-4-A20NZMH1-4-A25NZMH1-4-A32NZMH1-4-A40NZMH1-4-A50NZMH1-4-A63NZMH1-4-A80NZMH1-4-A100NZMH1-4-A125NZMH1-4-A160

---------

NZMC2-A160-

NZMC2-A200-

NZMC2-A250-

NZMC2-A300-

---------

NZMC2-4-A160NZMC2-4-A160/100 3)NZMC2-4-A200NZMC2-4-A200/125 3)NZMC2-4-A250NZMC2-4-A250/160 3)NZMC2-4-A300NZMC2-4-A300/200 3)

---------

NZMN2-A160-

NZMN2-A200-

NZMN2-A250-

NZMN2-A300-

---------

NZMN2-4-A160NZMN2-4-A160/100 3)NZMN2-4-A200NZMN2-4-A200/125 3)NZMN2-4-A250NZMN2-4-A250/160 3)NZMN2-4-A300NZMN2-4-A300/200 3)

NZMH2-A20NZMH2-A25NZMH2-A32NZMH2-A40NZMH2-A50NZMH2-A63NZMH2-A80NZMH2-A100NZMH2-A125NZMH2-A160

-NZMH2-A200

-NZMH2-A250

-NZMH2-A300

-

NZMH2-4-A20NZMH2-4-A25NZMH2-4-A32NZMH2-4-A40NZMH2-4-A50NZMH2-4-A63NZMH2-4-A80NZMH2-4-A100NZMH2-4-A125NZMH2-4-A160NZMH2-4-A160/100 3)NZMH2-4-A200NZMH2-4-A200/125 3)NZMH2-4-A250NZMH2-4-A250/160 3)NZMH2-4-A300NZMH2-4-A300/200 3)

---------

NZMC2-A160-BTNZMC2-A200-BTNZMC2-A250-BTNZMC2-A300-BT

-------------

---------

NZMN2-A160-BTNZMN2-A200-BTNZMN2-A250-BTNZMN2-A300-BT

-------------

NZMH2-A20-BTNZMH2-A25-BTNZMH2-A32-BTNZMH2-A40-BTNZMH2-A50-BTNZMH2-A63-BTNZMH2-A80-BTNZMH2-A100-BTNZMH2-A125-BTNZMH2-A160-BTNZMH2-A200-BTNZMH2-A250-BTNZMH2-A300-BT

-------------

NZMC3-A320-

NZMC3-A400-

NZMC3-A500-

NZMC3-4-A320NZMC3-4-A320/200 3)NZMC3-4-A400NZMC3-4-A400/250 3)NZMC3-4-A500NZMC3-4-A500/320 3)

NZMN3-A320-

NZMN3-A400-

NZMN3-A500-

NZMN3-4-A320NZMN3-4-A320/200 3)NZMN3-4-A400NZMN3-4-A400/250 3)NZMN3-4-A500NZMN3-4-A500/320 3)

NZMH3-A320-

NZMH3-A400-

NZMH3-A500-

NZMH3-4-A320NZMH3-4-A320/200 3)NZMH3-4-A400NZMH3-4-A400/250 3)NZMH3-4-A500NZMH3-4-A500/320 3)

NZMC3-A320-BTNZMC3-A400-BTNZMC3-A500-BT

---

NZMN3-A320-BTNZMN3-A400-BTNZMN3-A500-BT

---

NZMH3-A320-BTNZMH3-A400-BTNZMH3-A500-BT

---

----------

----------

NZMN3-AE630-

NZMN4-AE800-

NZMN4-AE1000-

NZMN4-AE1250-

NZMN4-AE1600-

NZMN3-4-AE630NZMN3-4-AE630/400NZMN4-4-AE800NZMN4-4-AE800/500NZMN4-4-AE1000NZMN4-4-AE1000/630NZMN4-4-AE1250NZMN4-4-AE1250/800NZMN4-4-AE1600NZMN4-4-AE1600/1000

NZMH3-AE630-

NZMH4-AE800-

NZMH4-AE1000-

NZMH4-AE1250-

NZMH4-AE1600-

NZMH3-4-AE630NZMH3-4-AE630/400NZMH4-4-AE800NZMH4-4-AE800/500NZMH4-4-AE1000NZMH4-4-AE1000/630NZMH4-4-AE1250NZMH4-4-AE1250/800NZMH4-4-AE1600NZMH4-4-AE1600/1000



176

UL 489 Circuit-breaker

Rated current = Rated uninterrupted current Setting ranges of the release

In= Iu

A

Ir

A

Ii

A

Distribution circuit and line protection

152025303540455060708090

100110125150175200225250300350400450500550600700800900

10001200

152025303540455060708090

100110125150175200225250300350400450500550600700800900

10001200

350350350350320 - 400320 - 400300 - 500300 - 500380 - 630480 - 800480 - 800600 - 1000600 - 1000750 - 1250750 - 1250960 - 1600

1200 - 20001200 - 20001500 - 25001500 - 2500

600 - 3300700 - 3850800 - 4400900 - 3600

1000 - 40001100 - 44001200 - 48001400 - 84001600 - 96001800 - 108002000 - 120002400 - 14400

Motor protection in conjunction with contactors and overload relays with short-circuit releases without overload release

1.22358

1218263340506380

100125160200250

––––––––––––––––––

8 - 1412.8 - 22.419.2 - 33.6

32 - 5648 - 8480 - 140

128 - 224200 - 350256 - 448320 - 560400 - 700504 - 882640 - 1120800 - 1250

1000 - 17501280 - 22401600 - 25002000 - 2500

Term

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Stan

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Term

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Term

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Standard terminal screwsTerminals as accessories



177

3-pole

Switching capacity

Basic25 kA 480 V 60 Hz18 kA 600 V 60 Hz

Standard35/42 kA 480 V 60 Hz25/35 kA 600 V 60 Hz

High 85/100kA 480V 60 Hz50kA 600V 60 Hz

NZMB1-AF15-NANZMB1-AF20-NANZMB1-AF25-NANZMB1-AF30-NANZMB1-AF35-NANZMB1-AF40-NANZMB1-AF45-NANZMB1-AF50-NANZMB1-AF60-NANZMB1-AF70-NANZMB1-AF80-NANZMB1-AF90-NANZMB1-AF100-NANZMB1-AF110-NANZMB1-AF125-NANZMB2-AF150-NANZMB2-AF175-NANZMB2-AF200-NANZMB2-AF225-NANZMB2-AF250-NA––––––––––––

NZMN1-AF15-NANZMN1-AF20-NANZMN1-AF25-NANZMN1-AF30-NANZMN1-AF35-NANZMN1-AF40-NANZMN1-AF45-NANZMN1-AF50-NANZMN1-AF60-NANZMN1-AF70-NANZMN1-AF80-NANZMN1-AF90-NANZMN1-AF100-NANZMN1-AF110-NANZMN1-AF125-NANZMN2-AF150-NANZMN2-AF175-NANZMN2-AF200-NANZMN2-AF225-NANZMN2-AF250-NANZMN3-AEF300-NANZMN3-AEF350-NANZMN3-AEF400-NANZMN3-AEF450-NANZMN3-AEF500-NANZMN3-AEF550-NANZMN3-AEF600-NANZMN4-AEF700-NANZMN4-AEF800-NANZMN4-AEF900-NANZMN4-AEF1000-NANZMN4-AEF1200-NA

NZMH2-AF15-NANZMH2-AF20-NANZMH2-AF25-NANZMH2-AF30-NANZMH2-AF35-NANZMH2-AF40-NANZMH2-AF45-NANZMH2-AF50-NANZMH2-AF60-NANZMH2-AF70-NANZMH2-AF80-NANZMH2-AF90-NANZMH2-AF100-NANZMH2-AF110-NANZMH2-AF125-NANZMH2-AF150-NANZMH2-AF175-NANZMH2-AF200-NANZMH2-AF225-NANZMH2-AF250-NANZMH3-AEF300-NANZMH3-AEF350-NANZMH3-AEF400-NANZMH3-AEF450-NANZMH3-AEF500-NANZMH3-AEF550-NANZMH3-AEF600-NANZMH4-AEF700-NANZMH4-AEF800-NANZMH4-AEF900-NANZMH4-AEF1000-NANZMH4-AEF1200-NA

NZMB1-S1,2-CNANZMB1-S2-CNANZMB1-S3-CNANZMB1-S5-CNANZMB1-S8-CNANZMB1-S12-CNANZMB1-S18-CNANZMB1-S26-CNANZMB1-S33-CNANZMB1-S40-CNANZMB1-S50-CNANZMB1-S63-CNANZMB1-S80-CNANZMB1-S100-CNANZMB2-S125-CNANZMB2-S160-CNANZMB2-S200-CNANZMB2-S250-CNA

NZMN1-S1,2-CNANZMN1-S2-CNANZMN1-S3-CNANZMN1-S5-CNANZMN1-S8-CNANZMN1-S12-CNANZMN1-S18-CNANZMN1-S26-CNANZMN1-S33-CNANZMN1-S40-CNANZMN1-S50-CNANZMN1-S63-CNANZMN1-S80-CNANZMN1-S100-CNANZMN2-S125-CNANZMN2-S160-CNANZMN2-S200-CNANZMN2-S250-CNA

–––––––––––––––––– C

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178

1) not in conjunction with switch-disconnector PN

NZM1(-4), 2(-4), 3(-4), 4(-4) 1 N/O – M22-K10PN1(-4), 2(-4), 3(-4) – 1 N/C M22-K01N(S)1(-4), 2(-4), 3(-4), 4(-4)

NZM1(-4), 2(-4), 3(-4), 4(-4) 1 N/O 1 N/C M22-CK11PN1(-4), 2(-4), 3(-4) 2 N/O – M22-CK20N(S)1(-4), 2(-4), 3(-4), 4(-4) – 2 N/C M22-CK02

NZM1(-4) 2 N/O – NZM1-XHIVPN1(-4)N(S)1(-4)

NZM1(-4) 2 N/O – NZM1-XHIVRPN1(-4)N(S)1(-4)

NZM1(-4) 2 N/O – NZM1-XHIVLPN1(-4)N(S)1(-4)

NZM2(-4), 3(-4) 2 N/O – NZM2/3-XHIVPN2(-4), 3(-4)N(S)2(-4), 3(-4)

NZM4(-4) 2 N/O – NZM4-XHIVN(S)4(-4)

NZM1(-4), 2(-4), 3(-4), 4(-4) 1 N/O – M22-K10N(S)1(-4), 2(-4), 3(-4), 4(-4) – 1 N/C M22-K01

NZM1(-4), 2(-4), 3(-4), 4(-4) 1 N/O 1 N/C M22-CK11N(S)1(-4), 2(-4), 3(-4), 4(-4) 2 N/O – M22-CK20

– 2 N/C M22-CK02

N(S)1, PN1, NZM1: 1N(S)2, PN2, NZM2: 2N(S)3, PN3, NZM3: 3N(S)4, NZM4: 3

N(S)1, NZM1: 1N(S)2, NZM2: 1N(S)3, NZM3: 1N(S)4, NZM4: 2

Standard auxiliary contact (HIN)Switching with the main contactsUsed for indicating and interlocking tasks

With bolt connection

With cage clamp connection.

Early-make auxiliary contactsFor interlock and load-shedding circuits,as well as for early-make switching of theundervoltage release with main switch /emergency-Stop applications

With clamp terminal on the left-hand switchside.

With clamp terminal on the right-hand switchside.

With 3 m connecting cablesinstead of bolt connection.


Trip indicating auxiliary contact (HIA)1)

General trip indication “+” with tripby voltage release, overload releaseor short-circuit release


With cage clamp connection.

Auxiliary contacts

Version For use with Max. number ofauxiliary contactsper switch

Contacts Part no.



179

Release Undervoltage release1) Overvoltage release2)

Version For usewith

Without auxiliary contact Without auxiliary contact

Rated control voltage UsV

Part no. Rated control voltage UsV

Part no.

1) non-delayed shut down of circuit-breaker NZM or switch-disconnector N with drop of the control voltage below 35 – 70% US.For use with Emergency-Stop devices in conjunction with Emergency-Stop button.

2) switches are tripped by a voltage pulse or by the application of uninterrupted voltage

12 V AC/DC NZM1-XA12AC/DC24 V AC/DC NZM1-XA24AC/DC110 V – 130 V AC/DC NZM1-XA110-130AC/DC208 V – 250 V AC/DC NZM1-XA208-250AC/DC380 V – 440 V AC/DC NZM1-XA380-440AC/DC

12 V AC/DC NZM1-XAL12AC/DC24 V AC/DC NZM1-XAL24AC/DC110 V – 130 V AC/DC NZM1-XAL110-130AC/DC208 V – 250 V AC/DC NZM1-XAL208-250AC/DC380 V – 440 V AC/DC NZM1-XAL380-440AC/DC

12 V AC/DC NZM2/3-XA12AC/DC24 V AC/DC NZM2/3-XA24AC/DC110 V – 130 V AC/DC NZM2/3-XA110-130AC/DC208 V – 250 V AC/DC NZM2/3-XA208-250AC/DC380 V – 440 V AC/DC NZM2/3-XA380-440AC/DC

12 V AC/DC NZM4-XA12AC/DC24 V AC/DC NZM4-XA24AC/DC110 V – 130 V AC/DC NZM4-XA110-130AC/DC208 V – 250 V AC/DC NZM4-XA208-250AC/DC380 V – 440 V AC/DC NZM4-XA380-440AC/DC

With clamp terminal on the NZM1(-4), 24 V 50/60 Hz NZM1-XU24ACleft-hand switch side. N(S)1(-4) 110 V – 130 V 50/60 Hz NZM1-XU110-130AC

208 V – 240 V 50/60 Hz NZM1-XU208-240AC380 V – 440 V 50/60 Hz NZM1-XU380-440AC12 V DC NZM1-XU12DC24 V DC NZM1-XU24DC110 V – 130 V DC NZM1-XU110-130DC220 V – 250 V DC NZM1-XU220-250DC

With 3 m connection cable NZM1(-4), 24 V 50/60 Hz NZM1-XUL24ACinstead of screw termination. N(S)1(-4) 110 V – 130 V 50/60 Hz NZM1-XUL110-130AC

208 V – 240 V 50/60 Hz NZM1-XUL208-240AC380 V – 440 V 50/60 Hz NZM1-XUL380-440AC12 V DC NZM1-XUL12DC24 V DC NZM1-XUL24DC110 V – 130 V DC NZM1-XUL110-130DC220 V – 250 V DC NZM1-XUL220-250DC

With clamp-type terminals NZM2(-4), 24 V 50/60 Hz NZM2/3-XU24ACN2(-4), 110 V – 130 V 50/60 Hz NZM2/3-XU110-130ACNZM3(-4) 208 V – 240 V 50/60 Hz NZM2/3-XU208-240ACN(S)3(-4) 380 V – 440 V 50/60 Hz NZM2/3-XU380-440AC

12 V DC NZM2/3-XU12DC24 V DC NZM2/3-XU24DC110 V – 130 V DC NZM2/3-XU110-130DC220 V – 250 V DC NZM2/3-XU220-250DC

With clamp-type terminals NZM4(-4), 24 V 50/60 Hz NZM4-XU24ACN(S)4(-4) 110 V – 130 V 50/60 Hz NZM4-XU110-130AC

208 V – 240 V 50/60 Hz NZM4-XU208-240AC380 V – 440 V 50/60 Hz NZM4-XU380-440AC12 V DC NZM4-XU12DC24 V DC NZM4-XU24DC110 V – 130 V DC NZM4-XU110-130DC220 V – 250 V DC NZM4-XU220-250DC

Cir

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180

NZM1(-4), NZM1-XTVDPN1(-4), N(S)1(-4)NZM2(-4), NZM2-XTVDPN2(-4), N(S)2(-4)NZM3(-4), NZM3-XTVDPN3(-4), N(S)3(-4)NZM4(-4), NZM4-XTVDN(S)4(-4)

NZM1(-4), NZM1-XTVDVPN1(-4), N(S)1(-4)NZM2(-4), NZM2-XTVDVPN2(-4), N(S)2(-4)

NZM3(-4), NZM3-XTVDVPN3(-4), N(S)3(-4)NZM4(-4), NZM4-XTVDVN(S)4(-4)

NZM1(-4), NZM1-XTVDVRPN1(-4), N(S)1(-4)NZM2(-4), NZM2-XTVDVRPN2(-4), N(S)2(-4)

NZM3(-4), NZM3-XTVDVRPN3(-4), N(S)3(-4)

NZM4(-4), NZM4-XTVDVRN(S)4(-4)

NZM1(-4), PN1(-4), N(S)1(-4) NZM1/2-XV4NZM2(-4), PN2(-4), N(S)2(-4)NZM3(-4), PN3(-4), N(S)3(-4) NZM3/4-XV4NZM4(-4), N(S)4(-4)

NZM1(-4), PN1(-4), N(S)1(-4) NZM1/2-XV6NZM2(-4), PN2(-4), N(S)2(-4)NZM3(-4), PN3(-4), N(S)3(-4) NZM3/4-XV6NZM4(-4), N(S)4(-4)

Door coupling rotary handleComplete including rotary drive and coupling partsWith the NZM...-XTVD... as well as NZM...-XTVD...60 types,an additional extension shaft is required.Degree of protection IP66/NEMA 4XStandard, black/grey

Lockable on handle and switch.Can be locked in 0 position, with adequate modification also in I position. Lockable door as additional feature, locking facility on circuit-breaker in 0 position.

Red-yellow for Emergency-StopLockable on handle and switch.Can be locked in 0 position, with adequate modification also in I position. Lockable door as additional feature, locking facility on circuit-breaker in 0 position.

Extension shaft400 mmMax. mounting depth

600 mmMax. mounting depth

Connection typesDoor coupling rotary handles

Version For use with Part no.



181

For use with Conductortype

Conductor cross-section(applies for 3-pole and 4-pole switches)

Part no.

O=fitted at topU=fitted at bottom

mm2 AWG/kcmil Cu-Band

mm

Copper strip

mm

Box terminalNZM2, PN2, N(S)2 3-pole Cu cables 1 x 4 – 185 1 x 12 – 350 f 2 x 9 x 0.8 +NZM2-160-XKCO≤ 160 A Cu cable 2 x 4 – 70 +NZM2-160-XKCUNZM2, PN2, N(S)2 +NZM2-250-XKCO200 A, 250 A +NZM2-250-XKCU

NZM2-4, PN2-4, N2-4 4-pole +NZM2-4-160-XKCO≤ 160 A +NZM2-4-160-XKCUNZM2-4, PN2-4, N2-4 +NZM2-4-250-XKCO200 A, 250 A +NZM2-4-250-XKCU

max. 500 A, and 400 A UL/CSANZM3, PN3, N(S)3 3-pole Cu cables 1 x 35 – 240 1 x 2 – 500 min. 6 x 16 x 0.8 +NZM3-XKCO

Cu cable 2 x 16 – 120 max. 10 x 24 x 1.0 +NZM3-XKCUNZM3-4, PN3-4, N3-4 4-pole +NZM3-4-XKCO

+NZM3-4-XKCU630 A 10 x 24 x 1.0

+ 5 x 24 x 1.0

ShroudNZM2, PN2, N(S)2 3-pole NZM2-XKSANZM3, PN3, N(S)3 NZM3-XKSA

NZM2-4, PN2-4, N2-4 4-pole NZM2-4-XKSANZM3-4, PN3-4, N3-4 NZM3-4-XKSA

Screw terminalStandard equipmentmax. 1250 ANZM4, N(S)4 3- and Cu lugs 1 x 120 – 185 1 x 250 – 350NZM4-4, N4-4) 4-pole 4 x 50 – 185 4 x 0 – 3501600 A (2 x) 10 x 50 x 1.0 (2 x) 50 x 10

Module platemax. 1250A 1-holeNZM4, N(S)4 3-pole Cu lugs 1 x 120 – 300 1 x 250 – 600 (2 x) 10 x 40 x 1.0 (2 x) 40 x 10 NZM4-XKM1NZM4-4, N4-4 4-pole 2 x 95 – 300 2 x 000 – 600 (2 x) 10 x 50 x 1.0 (2 x) 50 x 10 NZM4-4-XKM1

max. 1400A 2-holeNZM4, N(S)4 3-pole Cu lugs 2 x 95 – 185 2 x 000 – 350 NZM4-XKM2NZM4-4, N4-4 4-pole 4 x 35 – 185 4 x 2 – 350 NZM4-4-XKM2

max. 1500A (2 x) 10 x 50 x 1.0 (2 x) 50 x 10

Module platemax. 1250A 2-holeNZM4, N(S)4 3-pole Cu lugs 2 x 95 – 300 2 x 000 –600 NZM4-XKM2S-1250NZM4-4, N4-4 4-pole NZM4-4-XKM2S-1250

1600A 2-holeNZM4, N(S)4 3-pole (2 x) 10 x 50 x 1.0 (2 x) 50 x 10 NZM4-XKM2S-1600NZM4-4, N4-4 4-pole NZM4-4-XKM2S-1600

Connection width extension630 ANZM3, PN3, N(S)3 3-pole Cu-lugs 2 x 300 2 x 500 (2 x) 10 x 50 x 1.0 (2 x) 10 x 50 NZM3-XKV70NZM3-4, PN3-4, N3-4 4-pole AI lugs NZM3-4-XKV701600 ANZM4, N(S)4 3-pole Cu lugs 4 x 300 4 x 600 max. max. NZM4-XKV95

6 x 95 – 240 6 x 000 – 500 (2 x) 10 x 80 x 1.0 (2 x) 80 x 10 NZM4-XKV110NZM4-4, N4-4 4-pole NZM4-4-XKV95

NZM4-4-XKV120 Cir

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182

The residual-current protectionmodules can be connected to thebottom of the circuit-breaker NZM1and NZM2, and on the NZM1 also onthe right hand side with the samecontour design. A compact and mounting-friendly solution. An externalauxiliary voltage is not required. Theresidual-current protection module ofthe NZM2 is independent of the mainsvoltage and can thus be used forpersonnel protection in Germany. It isavailable in pulse current sensitive andalso in AC/DC current sensitive devices.In almost every mains configuration 3-pole and 4-pole variants as well asrated fault currents from 30 mA totime-discriminating 3 A are on offer. During a fault the rising fault currentwill initially be indicated by an LED onthe RCCB for the NZM1. The circuit-breaker trips via the residual-currentrelease only after the set fault currentis exceeded, i.e. the main contacts willbe opened. The cause of the fault isindicated mechanically on the devicewith the NZM1 and 2. Optional auxiliarycontacts can be clipped on in order toremotely indicate the trip. The circuit-breaker and the residual-currentrelease must be reset and switchedback on in order to restore the powersupply.

Fault current trip 3-pole 4-pole

Version Rateduninterruptedcurrent

Rated fault current delay timePart no. Part no.

Pulse current sensitive

Mounted at sideMounted at bottomMounted at sideMounted at bottomMounted at side

Mounted at bottomMounted at bottom

AC/DC sensitive

Mounted at bottom

max 125Amax 100Amax 125Amax 100Amax 125A

max 100Amax 250Amax 250A

max 250Amax 250A

IΔn = 0.03 A

IΔn = 0.3 A

IΔn = 0.03 - 0.1 - 0.3 - 0.5 - 1 - 3 Atv = 10 - 60 - 150 - 300 - 450 ms

IΔn = 0.03 AIΔn = 0,1 - 0,3 - 1 - 3 Atv = 60 - 150 - 300 - 450 ms

IΔn = 0.03 AIΔn = 0,1 - 0,3 - 1 Atv = 60 - 150 - 300 - 450 ms

NZM1-XFI30RNZM1-XFI30UNZM1-XFI300RNZM1-XFI300UNZM1-XFIR

NZM1-XFIU--

--

NZM1-4-XFI30RNZM1-4-XFI30UNZM1-4-XFI300RNZM1-4-XFI300UNZM1-4-XFIR

NZM1-4-XFIUNZM2-4-XFI30NZM2-4-XFI

NZM2-4-XFIA30NZM2-4-XFIA

Residual-current protection module upto 250 A rated current



183

Circuit-breaker 3-pole for 1000 V

With main switch characteristics to IEC/EN 60204 and isolating characteristics to IEC/EN 60947, VDE 660

Switching capacity Protection of systems and cables Selectively-openingcircuit-breakers

Motor protection

1000 V kA/cos v Icurated uninterrupted current Iu= rated current Inambient temperature at100% Iu min./max. -25 / +50

10 / 0.5

Iu

A

10 / 0.5

Iu

A

20 / 0.3

Iu

A

10 / 0.5

Iu

A

20 / 0.3

Iu

A

10 / 0.5

Iu

A

20 / 0.3

Iu

A

NZMH2-A...-S1 NZMN3-AE...-S1 NZMH4-AE...-S1 NZMH2-VE...-S1 NZMH4-VE...-S1 NZMN3-ME...-S1 NZMH4-ME...-S120 - 250 250 - 630 630 - 1000 100 - 250 630 - 1600 220 - 450 550 - 1400

The special series for up to 1000 V 50Hz rated operationalvoltage further extends the area of application for circuit-breakers and switch-disconnectors. They are particularlysuitable for use under special environmental conditions suchas mines, street tunnels, refineries, chemical plants andelectric railways. Typical applications include higher powerdrives and general industrial power supply with long powerlines.The switch-disconnectors also feature a snap-actionmechanism for safe switch on and off and the additionalinstallation of position and trip-indicating auxiliary contactsas well as shunt or undervoltage releases.

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NZM 2 with RCCB module for welding applications

The 3-pole circuit-breaker with residual-current release for equipmentwith power electronics such as inverters and frequency inverters isparticularly suitable for welding applications. The RCCB module is pulsecurrent sensitive and operates according to the core-balance principle ina range from 0 –100 Hz. Unwanted trips due to transient, pulse-shapederrors of the operating current are prevented. The function is mainsvoltage independent.

• Suitable for use in three-phase systems• Rated operational voltage 400V/ 50/60 Hz• Rated fault current ID n = 0.03 A• Built-in power supply Ue = 50 – 400 V• Pulse current sensitive• Non-UL/CSA approved

Circuit-breakers and switch-disconnectors for applications up to 1000 V


Circuit-breaker with residual-current releaseRated current = rateduninterrupted current In = IuA

OverloadreleaseIrA

Short-circuitreleaseIiA

Part no.Typical highswitching capacity150 kA at 415 V 50/60 Hz

160 125...160 960...1600 NZMH2- A160-FIA30

200 160...200 1200...2000 NZMH2- A200-FIA30

250 200...250 1500...2500 NZMH2- A250-FIA30


184

Flexible fault current protectionup to 1800 A current rating

The new Moeller relay/transducer combination coversoperating currents in a range from 1 to 1800 A. The widespectrum of applications ranges from general powerdistribution tasks to individual motor controls. The faultcurrents which are detected and processed by the relay rangefrom 30 mA to 5 A. The adjustable relay provides a pre-warnfunction which alerts before the set fault current is exceeded.The pre-warning allows preventative action to be taken toprevent shutdown of the electrical energy.

The application range of the relay/transducer combinationsextend – depending on the regulations which apply – from

personnel protection to fire protection, and even extends upto protection of systems for 1 to 4 pole power grids. Thecurrent relay signals that the set fault current has beenexceeded with a changeover contact. Depending on theapplication, the contact signal can be subsequently processedin the controls, as well as by the shunt or undervoltagereleases of a circuit-breaker which initiate the trip. The relayand transducer can be combined with every circuit-breaker.The compact ring-type transducer with no particular spacerequirement is placed at a suitable position on the cable run.The relay simply requires a free electrical cable connection.

Protection against the dangers of electrical energy with insulation faults



185

Two pushbuttons enable test and reset of the relay

Test: The function of the relay electronics is tested and the trip signal can be used to control the shunt or undervoltagerelease of the connected circuit-breaker. This test checks the operation of the entire function chain comprised ofmeasured value input, processing, signal routing as well as switch release. Reset: The release signal is reset regardless of if it is receivedfrom a fault current or by operation of the test button.

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Compact, safe, adaptable ...

... just as it should be, the fault current protection which isparticularly suited for cramped spaces such as for example inservice distribution systems. Ring-type transducers which are arranged in a space savingmanner on the cabling run and the measuring relay whichis simply snapped onto the DIN mounting rail, combine toform a functional unit. After a critical fault current has been exceeded, the outputsignal can be optionally channelled to an acoustic/opticalsignalling device, upstream control or directly to the shunt or undervoltage release of a motor-protective circuit-breaker/circuit-breaker for instantaneous shutdown. Three different relay variants are available for different protective tasks: 30 mA as well as 300 mA sensitivity with a fixed setting and 30 mA to 5 A adjustable in fixed steps,which can be combined with a time delay of 20 ms to 5 s. The non-delayed standard devices are particularly suited for protection of systems. The time-delayed variants areintended for discriminative series connection of multipleswitch/relay combinations. This ensures, that only the switchin the direct vicinity of the fault will trip.

Two colour LED’s signal operating and fault states

Possible wiring faults between relay and transducers areindicated by illumination of both LED’s. Diagnostics functionwith adjustable PFR-5 relay: If the set fault current is exceeded by more than 25, 50 or 75%, the red LED will flash at different frequencies. This alert feature ensures thattrouble-shooting for the cause of the fault can commencebefore a critical state is reached.

Residual current relay Pulse current sensitive

Ring-type transducer

Rated control voltage: Us = 230V A.C. (50/60 Hz) Integrated auxiliary switch (1 changeover contact)

Rated fault current IΔn = 0.03 A

Rated fault current IΔn = 0.3 A

Rated fault current IΔn = 0.03...5 A Adjustable fault current and delay time

Fault current prewarning by flashing red LED

Internal diameter 20 mm







PFR-5: Adjustable fault current: 0.03 - 0.1 - 0.3 - 0.5 - 1 - 3 - 5 A

Adjustable delay time:0.02 - 0.1 - 0.3 - 0.5 - 1 - 3 - 5 s

PFR-W-20 and PFR-W-30 incl. attachment clip for DIN top-hat rail

PFR-W-35 and all larger transducers incl. screw fitting

Engineering note:The transducer diameter must be selected to be 1.5 times larger than the diameter of the conductor lead through (see Technical Data).

Part no.

PFR-003

PFR-03

PFR-5

PFR-W-20

PFR-W-30

PFR-W-35

PFR-W-70

PFR-W-105

PFR-W-140

PFR-W-210

Residual current relay with ring-type transducer



186

Circuit-breakers IZM A concept for a top-level performance standard

The IZM from Moeller represents a concept for open-type circuit-breakers whichnowadays far exceeds the industry standard worldwide. Designed on the basis ofthe most up-to-date protection technology from the systems sector, these switchesopen up new dimensions in the rating range from 630 A to 6300 A. This refers notonly to their switching capacity, but also to the functions they offer, particularly asregards communication, simplicity of handling and installation. Using IZM, you putyour trust in a performance standard that will give you decisive advantages.



187

IZM.. 1- IZM.. 2- IZM.. 3-

Ranges of application, in A 250 –1600 250– 3200 1250– 6300

Number of poles 3/4 3/4 3/4

Rated voltage, in V 690 690 690

Service life, max. 20000 15000 10000

IP 55/ IP 20 IP 55/ IP 20 IP 55/ IP 20

Dimensions, 3-/ 4-pole Width 320/410 460/590 705/915

in mm Height 434 434 434

Depth 291 291 291

Short-circuit switching capacity

Icu = Ics at 440 V

50 kA

55 kA

65 kA

80 kA

100 kA

Circuit-breakers IZM are present in many power distribution systems in buildings and industrial applications world-wide.

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Rated current 630 A to 6300 A

The new open circuit-breakers IZM nowfully cover ranges from 800 to 6300 Awith frame sizes 2 and 3. The new,small frame size 1 extends the ratedcurrent range downwards to 630 A. If necessary this range can even bereduced to 250 A by exchanging therating plug. And all this with a settingrange from 0.4 to 1 x In.

Terminations

Circuit-breakers IZM up to 5000 A comewith horizontal connections, and IZM6300 A with vertical connections, asstandard. The following terminationoptions are available: verticalconnection, frontally accessibleconnections and flanged connections.

Uniform dimensions

The IZM has a uniform componentheight and depth over its whole currentspectrum. Only the component widthvaries with the number of poles and theframe size.

Degree of protection with/without cover



188

�� 910

12

11

11

2

2

18

16

17

13

8 8

1

55

4

7

6

7

3

15

1111

555

14

System overview Circuit-breakers IZM

1. Open-type circuit-breakers IZMfrom 630 A to 6300 A

2. External expansion modules 3. Communication module for

PROFIBUS4. Positioning indicator contact;

module for withdrawable units5. Main connection elements: front,

flanged, horizontal or vertical connection

6. Withdrawable unit 7. Control circuit plug 8. Auxiliary contact 9. Motor operator

10. Operating cycle counter 11. Electronic releases (control units) 12. Parameterization device13. Earth-fault protection module 14. 4-line LCD display15. Door sealing frame

16. Rated current module (rating plug)

17. Emergency-Stop mushroom push-button

18. Closing release, voltage release



189

IZM..-A.. IZM..-V.. IZM..-U.. IZM..-D..

Standard protective functions� � � � Overload protection Ir– – � � Delay time to overcome current peaks tr– � � � Delayed short-circuit protection Isd� � � � Non-delayed short-circuit protection Ii

Optional protective functions

– � � � Neutral conductor protection

– � � � Earth fault protection

Add-on functions

– – � � Thermal memory

– – � � Load monitoring

– – � � Short-circuit protection, convertible to I2t

– � � � N conductor protection, switchable– – � � Measuring functions

Parameter allocation and visual display

– – – � Remote parametrization of standard protective functions

– – � � Remote parametrization of expanded protective functions

– – � – LCD, alpha-numerical

– – – � LCD, graphical

Communication

– – � � Internal system bus

– – � � Communication via PROFIBUS or Ethernet

Various control unitsfor more flexibility

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The control electronics Options for control units:

– Not an option, � Standard, o Optional

The IZM is equipped as standard with the latestmicroprocessor-controlled electronics. Where required, therated current range, 630 A - 6300 A, can be expanded to 250A - 6300 A by means of a rating plug adapter. This featureenables flexible, precise matching to the power requirementin your system. There is a choice of four different control

units, providing optimum protection for your system, fromstraightforward system protection with overload- and short-circuit releases, to digital circuit-breakers with graphicaldisplay and the option of building time-selective networks.This is a system you can depend on.



7

Content Page

Command and signalling devices RMQ-Titan,RMQ16, Fingerprint system M22-ESA 8 - 27

Position switch LS-Titan, AT...28 - 39

Rotary switches T and switch-disconnectors P40 - 51

Insulated enclosure CI-K52 - 55

Function relays –timing, safety, operating, measuring and monitoring relays 56 - 67

Easy control relay, multi-function-display MFD-Titan, safety-related control relay easySafety, easyControl EC4P 68 - 91

Power supplies SN92 - 93

Frequency inverters DF/DV94 - 97

Semiconductor contactors DS Soft starter DS and DM 98 - 105

Contactors DIL Auxiliary switches DIL, Overload relays Z 106 - 125

Motor-protective circuit-breakers PKZ126 - 139

Motor-starter combinations140 - 151

Decentral Motor Starter and Speed Controller Rapid Link 152 - 153

Circuit-breakers and switch-disconnectors NZM/IZM154 - 189

Switchgear systems xEnergy190 - 195

Characteristics program196 - 199

Miniature circuit-breakers FAZResidual-current circuit-breakers, Combined RCD/MCB switches, Surge arresters, Rail-mounted service installation devices 200 - 207

Transformers and line reactors208 - 211

Safety technology212 - 227

Label editor228 - 231

Approvals232 - 235

Services/Addresses236 - 243

44090_00Kap_Vorlaufseiten.indd 744090_00Kap_Vorlaufseiten.indd 7 28.02.2008 9:43:17 Uhr28.02.2008 9:43:17 Uhr


Table of Contents

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