catalogue siemens lightning and overvoltage protection devices

5/1

5

Lightning and Overvoltage Protection Devices

General Data 5/2 Product overview5/3 Introduction

Lightning Arresters 5/7 Requirement category B, type 1, class I

Arrester Combinations 5/10 Requirement category B and C, type 1 and 2, class I and II

Surge Arresters 5/13 Narrow version, requirement category C, type 2, class II

5/16 Wide version, requirement category C, type 2, class II

5/20 Multipole, requirement category D, type 3, class III

Surge Protection Adapters

5/22 Requirement category D, type 3, class III

Accessories 5/25 For lightning and overvoltage protection devices

Lightning and Overvoltage Protection DevicesGeneral Data

Product overview

5/2 Siemens ET B1 T · 2007

Overview

1 MWmodular width 18 mm

Lightning arresters – requirement category B, type 1, class I• Plug-in protective blocks• TN-C, TN-S and TT systems• Rated arrester voltage Uc 350 V AC• Lightning current 50 ... 100 kA• All versions with remote indication contact• Installation location: Main distribution board, upstream or

downstream from the counter

Arrester combinations– requirement category B and C, type 1 and 2, class I and II• Plug-in protective blocks• TN-C, TN-S and TT systems• Rated arrester voltage Uc 350 V AC• Lightning current 50 ... 100 kA• All versions with remote indication contact• Installation location: Main distribution board

Surge arresters, narrow version – requirement category C, type 2, class II• Plug-in protective blocks• 2, 3 and 4-pole (TN-C, TN-S and TT systems)• Rated arrester voltage Uc 350 V AC• Rated discharge current 20 kA• Discharge surge current 40 kA• Version without or with remote indication contact• Installation location: Sub-distribution board• Mounting width 12 mm/pole

Surge arresters, wide version – requirement category C, type 2, class II• Plug-in protective blocks or compact version• 1, 2, 3 and 4-pole (TN-C, TN-S and TT systems)• Rated arrester voltage Uc 350 V AC• Rated discharge current 20 kA• Discharge surge current 40 kA• Version without or with remote indication contact• Installation location: Sub-distribution board• Mounting width 18 mm/pole (1 MW/pole)

Surge arresters – requirement category D, type 3, class III• Plug-in protective blocks• For 1-phase and 3-phase systems• Rated voltage

- 1-phase AC/DC 24 V, 60 V, 120 V, 230 V- 3-phase system AC 230/400 V

• Monitoring device• Installation location: As close as possible upstream from

the terminal equipment

Surge protection adapters – socket outlets, socket outlet adapters and combination protective devices• Can be plugged into 5 socket outlets• Status display• Permanent thermal monitoring of the protection circuit

Accessories• Male connectors for lightning and surge arresters• Through-type terminals• Busbars


Introduction

5/3Siemens ET B1 T · 2007

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Overview

Introduction to lightning and overvoltage protection

Overvoltage destroys a considerable number of electrical and electronic devices and units. And the damage is not limited to just industrial and commercial facilities. Building management systems as well as household appliances for daily use are also affected.

Without effective protection against overvoltage there is a real risk of costly repairs or replacement purchases due to the dam-age done to equipment.

Listed below are units from various sectors which have sensitive electronic circuitry and are frequently destroyed by overvoltage. Clearly, protective measures for preventing overvoltage-related damage are just as important to private households as for the commercial and industrial sectors. An effective overvoltage pro-tection concept for building management systems covers power supply, telephone, aerial/reception, data processing and control systems. What is important is that all the cables connected to a device are linked to a suitable surge arrester. Nearly all devices have a power supply. A television set, for example, also needs a reception signal which is supplied over an aerial cable. And re-gardless of whether the signal comes from an aerial or a wide band cable, both the aerial input and power supply to the televi-sion set should be protected. The need for such consistent all-round protection applies equally to all other devices and units.

Building management systems and industry• Heating controls• Outdoor lighting• Shutter controls• Garage door actuators• Central I&C• Air conditioning• Alarm systems• Fire alarms• Video surveillance• Process computers

Office equipment• Computers• Printers• Telecommunication systems• Fax machines• Copying machines

Private households• Dishwashers• Automatic washing machines• Clothes dryers• Coffee-makers• Radio alarm clocks• Refrigerators• Deep-freezers• Microwave ovens• Electric cookers• Telephone systems

Hobbies and leisure• Television sets• Aerial amplifiers• Video recorders• DVD players• Hifi systems• Computers• Electrical musical instruments• CB radio systems

In relation to the total value of the equipment concerned, the cost of installing suitable protective devices usually pays for itself when just a single unit of electrical equipment is saved just once from destruction . Provided the performance parameters are not exceeded, surge suppressors work many times, thus increasing the benefits for the user several-fold.

The comprehensive surge protection concept

FundamentalsTransient overvoltage results from lightning discharges, switch-ing operations in electrical circuits and electrostatic discharges. Without the protection provided by lightning arresters and over-voltage protection equipment, even the robustly constructed low-voltage supply systems of buildings or industrial plants are unable to cope with a lightning discharge. The overvoltage occurs only very briefly for millionths of a second. Nevertheless, the mostly very high voltages involved are capable of destroying electronic circuitry or the insulation between the conductors on printed circuit-boards. And even if an electrical or electronic device has passed the voltage withstand test according to IEC 100045, as required for being awarded the CE symbol, it is still not in a position to withstand unscathed all environmental influences with regard to electromagnetic compatibility (EMC). To prevent the destruction of electrical equipment by overvolt-age, all endangered interfaces such as signal inputs and power supplies must be connected to overvoltage protection equip-ment. What is needed, depending on the case of application, are components such as spark gaps, gas-filled surge arresters, varistors and suppressor diodes, which because of the differ-ences in their arresting and limiting specifications are arranged singly or as combinations in a protection circuit.

The following damage can be caused by overvoltageOvervoltage endangers and destroys a considerable number of electrical and electronic installations. In the last few years there has been a sharp increase in the frequency of incidents and the total costs of the damage incurred. The statistics published by property insurance companies have a clear tale to tell. Damage to devices and their destruction occur all the more often when devices need to be in permanent standby.Repairs and replacement purchases are not the only expense factor, however. Costs also arise through not being able to use the affected system components and possibly even through loss of software and data. The damage profiles generally cover everything from destroyed cables, printed circuit-boards and switching devices to substantial mechanical destruction of the building installations. This damage can be reliably prevented by lightning arresters, surge suppressors and arrester combina-tions.


Introduction


Lightning and overvoltage protection – WHY?Powerful information systems form the backbone of our modern industrial society. A fault or the failure of these types of systems can have far-reaching consequences. These can even cause service and industry companies to go bankrupt.The cause of faults are many and electromagnetic influences play a major role. In a highly technical, electromagnetic environ-ment, it is not advisable to simply wait for the mutual influencing of electrical and electronic devices and systems and then pay good money to eliminate the resulting problems. Rather it is es-sential to plan and take preventative measures that reduce the risk of influences, faults and destruction.In spite of all this, the damage and loss statistics of electronic in-surance companies are extremely worrying: More than a quarter of all claims are as a result of overvoltages due to electromag-netic influences.

Source: The causes of damage to electronics in 2001, analysis of 7370 claims Württembergische Versicherungs AG.

Causes of overvoltageDepending on their cause, overvoltages are divided into two cat-egories:• LEMP (Lightning ElectroMagnetic Pulse) – overvoltages,

caused by atmospheric influences (e.g. direct lightning strikes, electromagnetic lightning fields).

• SEMP (Switching ElectroMagnetic Pulse) – overvoltages caused by switching operations (e.g. disconnection of short-circuits, normal switching of loads).

Overvoltages that are the result of thunderstorms are caused by direct/close-up or remote strikes (see diagram on page 5/5).Direct or close-up strikes are lightning strikes to the lightning protection system of a building, its immediate proximity or to the electrical conductive systems of a building (e.g. l.v. power sup-ply, TC and control lines). The resulting surge currents and volt-ages are a particular threat to the system to be protected due to their amplitude and power.In the case of direct or close-up lightning strikes, the overvoltag-es (see diagram on page 5/5) are caused by the voltage drop at the surge grounding resistance and the resulting increase in potential of the building, compared to the distant environment. This represents the greatest possible loading of an electrical plant in buildings.The characteristic parameters of the surge current (peak value, rate of current rise, charge content, specific energy) can be de-scribed using the surge current waveform 10/350 µs (see dia-gram: examples of impulse test currents). These are defined in the international, European and national standards as test cur-rent for components and devices for protection in the event of direct strikes.

In addition to the voltage drop at the surge grounding resis-tance, overvoltages also occur in electrical building installations and the connected systems and devices, due to the induction effect of the electromagnetic lightning field (see diagram on page 5/5: Example 1b).The energy of these induced overvoltages and the resulting pulse currents is considerably less than that of a direct lightning impulse current and is therefore only described with surge cur-rent wave 8/20 µs (see diagram: Examples of impulse test currents). Components and devices that do not carry currents from direct lightning strikes are therefore checked using surge currents 8/20 µs.

Examples of impulse test currents

The protection conceptRemote strikes are lightning strikes at a greater distance from the objects to be protected, lightning strikes in the medium-voltage overhead system or the immediate proximity thereof, or lightning discharges from cloud to cloud (see diagram on page 5/5: Cases 2a, 2b and 2c). At the same time as these in-duced overvoltages, the effects of remote strikes on the electri-cal system of a building are controlled through devices and components, the dimensions of which correspond to surge cur-rent wave 8/20 µs.The causes of overvoltages due to switching operations in-clude the following:• Switching off of inductive loads

(e.g. transformers, reactors, motors),• Ignition and interruption of electric arcs

(e.g. arc-welding device),• Tripping of fuses.The effects of switching operations in the electrical installation of a building are simulated for testing purposes with surge currents of waveform 8/20 µs.To ensure the continuous availability of complex power and in-formation systems, even in the event of direct lightning strikes, further measures for overvoltage protection of electrical and electronic systems are required as well as a building lightning protection system. It is important to take all the causes of over-voltages into account. For this purpose, the lightning protection zone concept is used as described in IEC 62305-4 (DIN V VDE V 0185-4) (see diagram on page 5/6). The building is divided into zones of different danger levels. Using these zones, it is possible to determine the devices and components required for the lightning and overvoltage protection.

23,7 %

15,4 %

22,9 %

5,6 %0,8 %I2_1

1531

a

27,1 %

4,6 %

Fire

Elementary

Overvoltages(Lightning discharges and

Switching operations)

Other

Negligence

Water

TheftVandalism

s

[kA

]0

0 20 200 350400 600 800 1000[ ]

I2_11532a

25

50

75

100

8

1

2

4

1

2

s[ ] Q [As] W/R [J/ ]

100 10/350 50 2,5 × 106

8 8/20 0,1 0,4 × 103

max [kA] Waveform

Impulse test current forlightning arresters

Impulse test current forsurge arresters


Introduction


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An EMC-oriented lightning protection zone concept should also include external lightning protection (with air terminals, arrest-ers, grounding), equipotential bonding, room insulation and overvoltage protection for power and information systems.For the definition of lightning protection zones (LPZ), please use the specifications made in the table "Definition of lightning protection zones".

Definition of lightning protection zones

According to the demands and loads made on overvoltage pro-tection devices with regard to their installation site, these are di-vided into lightning arresters, surge arresters and arrester com-binations.The highest demands with regard to discharge capacity are made on lightning current and arrester combinations, which im-plement the transition from lightning protection zone LPZ 0A to LPZ 1 or LPZ 0A to LPZ 2. These surge arresters must be able to carry lightning partial currents of waveform 10/350 µs several times and thus prevent these destructive currents from penetrat-ing the electrical installation of a building. At the transition of lightning protection zone LPZ 0B to LPZ 1 the downstream light-ning arrester at the transition area of lightning protection zones LPZ 1 auf LPZ 2 and higher, surge arresters are installed to pro-tect against overvoltages. It is their task to further attenuate the remaining extent of the upstream protection level and restrict the overvoltages in the system, whether they are induced or self-generated.The lightning and overvoltage protective measures at the bor-ders of the lightning protection zones apply in equal measure to the energy and information system. The holistic approach of the measures described in the EMC-oriented lightning protection zone concept means it is possible to achieve permanent plant availability of a modern infrastructure.

Causes for overvoltages during lightning discharges

Lightning protection zones

Description

LPZ 0A Zone where objects are exposed to direct lightning strikes and must therefore carry the whole lightning current. The undamped electromagnetic field occurs in this case.

LPZ 0B Zone where objects are not exposed to direct lightning strikes but where the undamped electromagnetic field still occurs.

LPZ 1 Zone where objects are not exposed to direct lightning strikes and in which the currents are reduced compared to Zone 0A. In this zone, the electromagnetic field may be damped, depending on the insulation measures imple-mented.

LPZ 2, LPZ 3

If a significant reduction in the conducted currents and/ or the electromagnetic field is required, subsequent zones must be set up. The demand on these zones must be geared towards the required environment zones of the system to be protected.

!

"

#

#

#

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Strike in outer lightning protection,Process framework (in industrial plants),Cables, etc.

Voltage drop atsurge grounding resistance R

Induced voltage in loops

+ , - !

$ ( . '

- !

st

( ! ! ' & " /

Strike in medium-voltage overhead lines

Overvoltage transformerwaves on overhead lines,as a result ofcloud-cloud lightning strikes

Fields of lightning channel


Introduction


EMC-oriented lightning protection zone concept

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I2_11533

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Lightning and Overvoltage Protection DevicesLightning Arresters

Requirement category B, type 1, class I


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Benefits • Type 1 lightning arresters do not require decoupling reactors

to be fitted in the plant. This simplifies plant configuration and reduces space requirements. No time is wasted on planning the installation of decoupling reactors. This also considerably cuts costs.

• The rated arrester voltage is a uniform 350 V AC. This in-creases safety in systems with extended voltage overshoots.

• All lightning arresters are fitted with a mechanical fault indica-tion, which does not require an extra power supply. This means they can be installed in the precounter area, where electrical plants can be protected particularly effectively.

• The protective modules are plug-in versions. No mounting work required when replacing the protective modules. When taking insulation measurements, the protective modules are simply removed, no need to disconnect the power supply.

• All type 1 lightning arresters are fitted with a remote indication contact, which is inserted in the device and does not require any further space. A remote signaling is always possible, even in the event of a power failure.

Application

• Type 1 lightning arresters include the system cables in the equipotential bonding, which protects the low-voltage systems against the overvoltages and high surge currents that can be triggered by direct or indirect lightning strikes.

• The protection level is lowered to 1.5 kV by the lightning ar-rester, which reduces the load on the plant if a lightning strike is discharged.

• The lightning arresters are enclosed and are suitable for installation in the precounter area.

• Tested by wave-shaped lightning impulse, 25/100 kA with waveform 10/350 µs.

Technical specifications

Design Lightning arrestersOrder No. 5SD7 412-1 5SD7 413-1 5SD7 414-1Approvals KEMA (available soon)Requirement category B to E DIN VDE 06754-6;

SPD class I according to IEC 61643-11; SPD type 1 according to EN 61643-1

Rated voltage UN V AC 230/400 230/400 230/400Rated arrester voltage Uc • L/N, N/PE, L/PEN V AC 350 350 350Lightning impulse current Iimp (10/350 µs)• L/N or L/PEN, 1-pole/3-pole kA 25/100 25/75 25/100• N/PE kA 100 -- 100Rated discharge surge current In (8/20 µs)• L/N or L/PEN, 1-pole/3-pole kA 25/100 25/75 25/100• N/PE kA 100 -- 100Protection level Up• L/N, N/PE, L/PEN kV ≤1.5 ≤1.5 ≤1.5Follow current discharge capacity Ifi (AC)• L/N or L/PEN kA 50 50 50• N/PE A 100 -- 100Response time tA • L/N or L/PEN ns ≤100 ≤100 ≤100• L-(N)-PE ns ≤100 -- ≤100Max. required back-up protection A 315 gL/gG 315 gL/gG 315 gL/gGShort-circuit strength at max. back-up protection

kArms 50 50 50

TOV voltage UT• L/N V/s 415/5 415/5 415/5• N/PE V/ms 1200/200 -- 1200/200Temperature range °C -40 ... +80 Degree of protection IP20Conductor cross-section• Finely stranded mm2 0.5 ... 25• Solid mm2 0.5 ... 35Mounting width according to DIN 43880 MW 4 6 8Remote signaling yesContact type Floating CO contact (plug-in)Operational voltage, max. V AC 250

V DC 125Operational current, max.• Resistive/inductive load AC 1 A/1 A• Resistive/inductive load DC 0.2 A/30 mAConductor cross-section• Finely stranded/solid mm2 1.5/1.5




Selection and ordering data

Dimensional drawings2-pole

5SD7 412-1

3-pole

5SD7 413-1

Dis-chargecapacity

MW Order No. Weight1 unitapprox.

PS*/P. unit

kA kg Unit(s)Lightning arresters

2-polefor TT and TN-S systems 100 4 5SD7 412-1 0.732 1

3-polefor TN-C systems 75 6 5SD7 413-1 0.909 1


I2_12719

45 90 99

43,56,77264

RS

I2_12720

45 90 99

43,56,710864

RS

* You can order this quantity or a multiple thereof.




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4-pole

5SD7 414-1

Schematics2-pole

5SD7 412-1

3-pole

5SD7 413-1

4-pole

5SD7 414-1

I2_12721

45 90 99

43,56,714464

RS

PE L1

N

I2_1

2565

12 14

11

RS

L1 L2 L3

PEN

I2_1

2566

12 14

11

RS

PE L1 L2 L3

N

I2_1

2567

12 14

11

RS

Lightning and Overvoltage Protection DevicesArrester Combinations Requirement category B and C,type 1 and 2, class I and II


Benefits• Type 1 and 2 arrester combinations do not require decoupling

reactors to be fitted in the plant. This simplifies plant configu-ration and reduces space requirements. No time is wasted on planning the installation of decoupling reactors. This also con-siderably cuts costs.

• The rated arrester voltage is a uniform 350 V AC. This increases safety in systems with longer voltage overshoots.

• All arrester combinations are fitted with a mechanical fault in-dication, which does not require an extra power supply.

• The protective modules are plug-in versions. No mounting work required when replacing the protective modules. When taking insulation measurements, the protective modules are simply removed, no need to disconnect the combination arrester from the power supply.

• The same type 2, class II overvoltage protective modules are used as for the slim version of the surge arresters (5SD7 42.). This simplifies stock-keeping.

• All arrester combinations are fitted with a remote indication contact, which is inserted in the device and does not require any further space. A remote signaling is always possible, even in the event of a power failure.

Application

• Type 1 and 2 arrester combinations include the system cables in the equipotential bonding, which protects the low-voltage systems against the overvoltages and high currents that can be triggered by direct lightning strikes.

• The protection level is lowered to 1.5 kV by the arrester com-binations, which reduces the load on the plant if a lightning strike is discharged.

• Tested by wave-shaped lightning impulse, 25/100 kA with waveform 10/350 µs.

• A thermal isolating arrester disconnector offers a high degree of protection against overload during runtime.


Design Arrester combinationsOrder No. 5SD7 442-1 5SD7 443-1 5SD7 444-1Approvals KEMA (available soon)Requirement category B to E DIN VDE 06754-6;

SPD class I according to IEC 61643-11; SPD type 1 according to EN 61643-1

Rated voltage UN V AC 230/400 230/400 230/400Rated arrester voltage Uc • L/N, N/PE, L/PEN V AC 350 350 350Lightning impulse current Iimp (10/350 µs)• L/N or L/PEN, 1-pole/3-pole kA 25/100 25/75 25/100• N/PE kA 100 -- 100Rated discharge surge current In (8/20 µs)• L/N or L/PEN, 1-pole/3-pole kA 25/100 25/75 25/100• N/PE kA 100 -- 100Protection level Up• L/N, N/PE, L/PEN kV ≤1.5 ≤1.5 ≤1.5Follow current discharge capacity Ifi (AC)• L/N or L/PEN kA 25 25 25• N/PE A 100 -- 100Response time tA • L/N or L/PEN ns ≤100 ≤100 ≤100• L-(N)-PE ns ≤100 -- ≤100Max. required back-up protection A 315 gL/gG 315 gL/gG 315 gL/gGShort-circuit strength at max. back-up protection

kArms 50 50 50

TOV voltage UT• L/N V/ms 350/5 350/5 350/5• N/PE V/ms 1200/200 -- 1200/200Temperature range °C -40 ... +80 Degree of protection IP20Conductor cross-section• Finely stranded mm2 0.5 ... 25• Solid mm2 0.5 ... 35Mounting width according to DIN 43880 MW 4 6 8Visual function/fault indication yesRemote signaling yesContact type Floating CO contact (plug-in)Operational voltage, max. V AC 250


Lightning and Overvoltage Protection DevicesArrester Combinations

Requirement category B and C,type 1 and 2, class I and II


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Dimensional drawings

2-pole

5SD7 442-1

3-pole

5SD7 443-1

Dis-chargecapacity


PS*/P. unit

kA kg Unit(s)Arrester combinations


3-polefor TN-C systems 75 6 5SD7 443-1 1.040 1


I2_12696

45 90 99

43,56,77264

RS

I2_12697

45 90 99

43,56,710864

RS


Lightning and Overvoltage Protection DevicesArrester Combinations Requirement category B and C,type 1 and 2, class I and II


4-pole

5SD7 444-1

Schematics

2-pole

5SD7 442-1

3-pole

5SD7 443-1

4-pole

5SD7 444-1

I2_12698

45 90 99

43,56,714464

RS

PE L1

N

I2_1

2568

12 14

11

RS

L1 L2 L3

PEN

I2_1

2569

12 14

11

RS

PE L1 L2 L3

N

I2_1

2570

12 14

11

RS

Lightning and Overvoltage Protection DevicesSurge Arresters

Narrow version,requirement category C, type 2, class II


12

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Benefits• Type 2 surge arresters do not require decoupling reactors to

be fitted in the system. This simplifies plant configuration and reduces space requirements. No time is wasted on planning the installation of decoupling reactors. This considerably cuts costs.

• The rated arrester voltage is a uniform 350 V AC. This increases safety in systems with extended voltage overshoots.

• All type 2 surge arresters are fitted with a mechanical fault indication, which does not require an extra power supply.

• The protective modules are plug-in versions. No mounting work required when replacing the protective modules. When taking insulation measurements, the protective modules are simply removed, no need to disconnect the surge arrester from the power supply.

• The same protective modules are used as for combination arresters. This simplifies stock-keeping.

• All type 2 surge arresters are available with a remote signaling contact, which is inserted in the device and does not require any further space. A remote signaling is always possible, even in the event of a power failure. The remote signaling signals a fault even if the protective module is not plugged in.

• The protective module is only 12 mm wide and is an outstand-ing space-saving solution.

Application

• Type 2 surge arresters are used after type 1 lightning arresters in main distribution boards or sub-distribution boards and pro-tect low-voltage systems against overvoltages.

• The type 2 surge arrester lowers the level of protection to 1.5 kV.



Design Multipole surge arresters, 350 Vwithout remote signaling with remote signaling

Order No. 5SD7 422-0 5SD7 423-0 5SD7 424-0 5SD7 422-1 5SD7 423-1 5SD7 424-1Approvals KEMA (available soon)Requirement category C to E DIN VDE 06754-6;

SPD class II according to IEC 61643-11; SPD type 2 according to EN 61643-1

Rated voltage UN V AC 230/400 230/400 230/400 230/400 230/400 230/400Rated arrester voltage Uc • L/N or L/PEN V AC 350 350 350 350 350 350• N/PE V AC 264 -- 264 264 -- 264Rated discharge surge current In (8/20 µs)• L/N or L/PEN, 1-pole/3-pole kA 20 20/60 20 20 20/60 20• N/PE kA 20 -- 20 20 -- 20Discharge surge current Imax (8/20 µs)• L/N or L/PEN, 1-pole/3-pole kA 40 40/120 40 40 40/120 40• N/PE kA 40 -- 40 40 -- 40Protection level Up• L/N or L/PEN kV ≤1.4 ≤1.4 ≤1.4 ≤1.4 ≤1.4 ≤1.4• N/PE kV ≤1.5 -- ≤1.5 ≤1.5 -- ≤1.5Response time tA • L/N ns ≤25 ≤25 ≤25 ≤25 ≤25 ≤25• N/PE ns ≤100 -- ≤100 ≤100 -- ≤100Max. required back-up protection A 125 gL/gG 125 gL/gG 125 gL/gG 125 gL/gG 125 gL/gG 125 gL/gGShort-circuit strength at max. back-up protection

kArms 25 25 25 25 25 25

TOV voltage UT• L/N V/s 415/5 415/5 415/5 415/5 415/5 415/5• N/PE V/ms 1200/200 -- 1200/200 1200/200 -- 1200/200Temperature range °C -40 ... +80 Degree of protection IP20Conductor cross-section• Finely stranded mm2 2.5 ... 16• Solid mm2 0.5 ... 25Mounting width according to DIN 43880 mm 26 38 50 26 38 50Visual function/fault indication yesRemote signaling no no No yes yes yesContact type -- -- -- Floating CO contact (plug-in)Operational voltage, max. V AC 250


Lightning and Overvoltage Protection DevicesSurge ArrestersNarrow version,requirement category C, type 2, class II




2-pole

5SD7 422-.

5SD7 422-0 without RS (remote signaling)

3-pole

5SD7 423-.


Dischargecapacity rated value/max.

Mountingwidth

Order No. Weight1 unitapprox.

PS*/P. unit

kA mm (MW) kg Unit(s)Surge arresters

5SD7 422-0

2-polefor TT and TN-S systems• Without remote signaling 20/40 24 (1 1/3) 5SD7 422-0 0.220 1• With remote signaling 20/40 24 (1 1/3) 5SD7 422-1 0.227 1

5SD7 423-0

3-polefor TN-C systems• Without remote signaling 20/40 36 (2) 5SD7 423-0 0.320 1• With remote signaling 20/40 36 (2) 5SD7 423-1 0.330 1

5SD7 424-1

4-polefor TT and TN-S systems• Without remote signaling 20/40 48 (2 2/3) 5SD7 424-0 0.408 1• With remote signaling 20/40 48 (2 2/3) 5SD7 424-1 0.416 1

I2_12699

45 90

43,56,72664

99

RS

45 90

43,56,73864

I2_12700

99

RS



Narrow version,requirement category C, type 2, class II


12

34567891011121314151617

4-pole

5SD7 424-.


Schematics

2-pole

5SD7 422-.


3-pole

5SD7 423-.


4-pole

5SD7 424-.


45 90

43,56,75064

I2_12701

99

RS

L1PE

N

I2_1

2571

12 14

11

RS

L3L2L1

PEN

I2_1

2572

12 14

11

RS

L3L2L1PE

NI2

_125

7312 14

11

RS

Lightning and Overvoltage Protection DevicesSurge ArrestersWide version,requirement category C, type 2, class II


Benefits• Type 2 surge arresters do not require decoupling reactors to

be fitted in the system. This simplifies plant configuration and reduces space requirements. No time is wasted on planning the installation of decoupling reactors. This considerably cuts costs.

• The rated arrester voltage is a uniform 350 V AC. This increases safety in systems with extended voltage overshoots.

• All type 2 surge arresters are fitted with a mechanical fault indication, which does not require an extra power supply.

• The protective modules are plug-in versions. No mounting work required when replacing the protective modules. When taking insulation measurements, the protective modules are simply removed, no need to disconnect the surge arrester from the power supply.

• Type 2 surge arresters are available with a remote signaling contact, which is inserted in the device and does not require any further space. A remote signaling is always possible, even in the event of a power failure. The remote signaling signals a fault even if the protective module is not plugged in.

• The width of a protective module is 1 MW. This means that it can also be rail-mounted with a miniature circuit-breaker or RCCB.

Application

• Type 2 surge arresters are used after type 1 lightning arresters in main distribution boards or sub-distribution boards and pro-tect low-voltage systems against overvoltages.

• The type 2 surge arrester lowers the level of protection to 1.5 kV.



Design Single-pole surge arresters, wide versionN/PE without remote signaling with remote signalingplug-in compact plug-in compact plug-in

Order No. 5SD7 481-0 5SD7 466-0 5SD7 461-0 5SD7 466-1 5SD7 461-1Approvals KEMA (available soon)Requirement category C to E DIN VDE 06754-6;


Rated voltage UN V AC 230 230 230 230 230Rated arrester voltage Uc • L/N V AC -- 350 350 350 350• N/PE V AC 260 -- -- -- --Rated discharge surge current In (8/20 µs)• L/N kA -- 20 20 20 20• N/PE kA 20 -- -- -- --Discharge surge current Imax (8/20 µs)• L/N kA -- 40 40 40 40• N/PE kA 40 -- -- -- --Lightning test current Iimp (10/350 µs) kA 12 -- -- -- --Protection level Up• L/N kV -- ≤1.4 ≤1.4 ≤1.4 ≤1.4• N/PE kV ≤1 -- -- -- --Response time tA • L/N ns -- ≤25 ≤25 ≤25 ≤25• N/PE ns ≤100 -- -- -- --Max. required back-up protection A 125 gL/gG 125 gL/gG 125 gL/gG 125 gL/gG 125 gL/gGShort-circuit strength at max. back-up protection

kArms 25 25 25 25 25

TOV voltage UT• L/N V/s -- 415/5 415/5 415/5 415/5Temperature range °C -40 ... +80 Degree of protection IP20Conductor cross-section• Finely stranded mm2 0.5 ... 25• Solid mm2 0.5 ... 35Mounting width according to DIN 43880 MW 1 1 1 1 1Visual function/fault indication yesRemote signaling no no no yes yesContact type -- -- -- Floating CO contact (plug-in)Operational voltage, max. V AC 250



Wide version,requirement category C, type 2, class II


12

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Design Multipole surge arresters, wide version, plug-inwithout remote signaling contact with remote signaling contact3-pole 4-pole 3-pole 4-pole

Order No. 5SD7 463-0 5SD7 464-0 5SD7 463-1 5SD7 464-1Approvals KEMA (available soon)Requirement category C to E DIN VDE 06754-6;


Rated voltage UN V AC 230/400 230/400 230/400 230/400Rated arrester voltage Uc • L/N or L/PEN V AC 350 350 350 350• N/PE V AC -- 264 -- 264Rated discharge surge current In (8/20 µs)• L/N or L/PEN, 1-pole/3-pole kA 20/60 20 20/60 20• N/PE kA -- 20 -- 20Discharge surge current Imax (8/20 µs)• L/N or L/PEN, 1-pole/3-pole kA 40/120 40 40/120 40• N/PE kA -- 40 -- 40Protection level Up• L/N or L/PEN kV ≤1.4 ≤1.4 ≤1.4 ≤1.4• N/PE kV -- ≤1.5 -- ≤1.5Response time tA • L/N or L/PEN ns ≤25 ≤25 ≤25 ≤25• N/PE ns -- ≤100 -- ≤100Max. required back-up protection A 125 gL/gG 125 gL/gG 125 gL/gG 125 gL/gGShort-circuit strength at max. back-up protection

kArms 25 25 25 25

TOV voltage UT• L/N or L/PEN V/s 415/5 415/5 415/5 415/5• N/PE V/ms -- 1200/200 -- 1200/200Temperature range °C -40 ... +80Degree of protection IP20Conductor cross-section• Finely stranded mm2 0.5 ... 25• Solid mm2 0.5 ... 35Mounting width according to DIN 43880 MW 3 4 3 4Visual function/fault indication yesRemote signaling no no yes yesContact type -- -- Floating CO contact (plug-in)Operational voltage, max. V AC 250


Lightning and Overvoltage Protection DevicesSurge ArrestersWide version,requirement category C, type 2, class II



Discharge capacity rated value/max.


PS*/P. unit

kA kg Unit(s)Surge arresters, wide version

5SD7 466-1

1-pole, compact (non plug-in)• Without remote signaling 20/40 1 5SD7 466-0 0.114 1• With remote signaling 20/40 1 5SD7 466-1 0.120 1

5SD7 461-1

1-pole, plug-in• Without remote signaling 20/40 1 5SD7 461-0 0.130 1• With remote signaling 20/40 1 5SD7 461-1 0.134 1

N/PE, 1-pole, plug-in• Without remote signaling 20/40 1 5SD7 481-0 0.131 1

5SD7 463-1

3-pole, plug-in, 3+0 circuitfor TN-C systems• Without remote signaling 20/40 3 5SD7 463-0 0.393 1• With remote signaling 20/40 3 5SD7 463-1 0.403 1

5SD7 464-0

4-pole, plug-in, 3+1 circuitfor TN-C and TN-S systems• Without remote signaling 20/40 4 5SD7 464-0 0.433 1• With remote signaling 20/40 4 5SD7 464-1 0.443 1



Wide version,requirement category C, type 2, class II


12

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5SD7 461-., 5SD7 481-0

5SD7 461-0 and 5SD7 481-0 without RS (remote signaling)

5SD7 463-.


5SD7 464-.


5SD7 466-.


Schematics

5SD7 461-.


5SD7 463-.


5SD7 464-.

5SD7 466-. 5SD7 481-0


I2_12703

45 90 99

43,56,71864

RS

I2_12704

45 90 99

43,56,75464

RS

I2_12705

45 90 99

43,56,77264

RS

I2_12702

45 90 99

43,56,71864

RS

(L/N)

+

L/N

1211 14

( )

I2_1

2621

RS

L3L2L1

PEN

I2_1

2572

12 14

11

RS

L3L2L1PE

N

I2_1

2573

12 14

11

RS


L1

PEN

I2_1

2622

12 14

11

RS

PE

N

I2_1

2623

Lightning and Overvoltage Protection DevicesSurge ArrestersMultipole,requirement category D, type 3, class III


Benefits• The protective modules are plug-in versions. No mounting

work required when replacing the protective modules. • All type 3 surge arresters are fitted with a mechanical fault in-

dication, which does not require an extra power supply.• In the event of a power failure, a remote signaling is output

over an optocoupler with open collector output.

Application

• Type 3 surge arresters are installed after the type 2 surge arresters in sub-distribution boards close to the loads in single or multiphase systems and further limit the overvoltage in order to protect the connected loads.

• Type 3 surge arresters in voltage versions 24, 60, 120 and 240 V can be used in AC and DC systems.


Design Multipole surge arresters, plug-in 2-pole 4-pole

Order No. 5SD7 432-1 5SD7 432-2 5SD7 432-3 5SD7 432-4 5SD7 434-1Approvals KEMARequirement category D to E DIN VDE 06754-6;

SPD class III according to IEC 61643-11; SPD type 3 according to EN 61643-1

Rated voltage UNV AC 230 120 60 24 230/400V DC 230 120 60 24 --

Rated current IN (at 30 °C) A 26 26 26 26 3 x 26Rated arrester voltage Uc

V AC 253 150 100 34 335V DC 275 200 130 44 --

Rated discharge surge current In (8/20 µs) kA 3 2.5 2.5 1 1.5Max. discharge surge current Imax (8/20 µs) kA 10 10 6.5 2 4.5Combined surge Uoc kV 6 6 4 2 4Protection level Up V ≤1500/≤600 ≤850/≤350 ≤700/≤250 ≤550/≤100 ≤1200Response time tA ns ≤100 ≤100 ≤100 ≤100 ≤100Max. required back-up protection A 25 gL/gG 25 gL/gG 25 gL/gG 25 gL/gG 25 gL/gGTemperature range °C -40 ... +85Degree of protection IP20Conductor cross-section• Finely stranded mm2 0.2 ... 4• Solid mm2 0.2 ... 2.5Mounting width according to DIN 43880 MW 1 1 1 1 2Visual function/fault indication yesRemote signaling yesContact type NC contactsOperational voltage, max. V 250Operational current, max. A 3


Multipole,requirement category D, type 3, class III


12

34567891011121314151617



2-pole

5SD7 432-.

4-pole

5SD7 434-1

Schematics

2-pole

5SD7 432-.

Ratedvoltage Un


PS*/P. unit

kg Unit(s)Surge arresters, plug-in

5SD7 432-1

2-pole V AC, V DCwith remote signaling 24 1 5SD7 432-4 0.027 1

60 1 5SD7 432-3 0.026 1120 1 5SD7 432-2 0.081 1230 1 5SD7 432-1 0.071 1

4-pole V ACwith remote signaling 230/400 2 5SD7 434-1 0.056 1

I2_1

2706

45 71 90

45296,718

7 9 11

58

8 1012 I2_1

2707

45 71 90

45296,736

58

I2_1

2576

6

11

12

24

L5

L

13N

PENPE


Lightning and Overvoltage Protection DevicesSurge Protection Adapters

Requirement category D, type 3, class III


Benefits• All type 3 surge protection adapters are fitted with an LED as

a visual status and fault indication. • The protection circuit is continuously thermally monitored. This

ensures constant safe operation for the operator.• The attractive design fits well into residential living spaces.

Application

• Type 3 surge protection adapters for insertion in a 5socket outlet protect electronic loads against overvoltages from main power supplies.

• However, overvoltages do not just reach loads over power cables. Telecommunication devices for TAE, ISDN/RDS and RJ12 connection, televisions or radios with aerial connection or satellite radio connection are all connected to a further power supply system which may also pass overvoltages on to devices.


Design Surge protection adapters5, line contactor

TC analog/ TAE

ISDN TV/radio TC analog/ RJ12

TV/SAT

Order No. 5SD7 435-0 5SD7 435-2 5SD7 435-3 5SD7 435-5 5SD7 435-6 5SD7 435-7Approvals VDE (available soon)Requirement category D to E DIN VDE 06754-6;

SPD class III according to IEC 61643-11; SPD type 3 according to EN 61643-1

Line contactorRated voltage UN (power supply) V AC 230 230 230 230 230 230Rated current IN/ambient temperature A/°C 16/30 16/30 16/30 16/30 16/30 16/30Rated arrester voltage Uc (power supply)• L/N V AC 275 275 275 275 275 275• L-(N)-PE V AC 360 360 360 360 360 360Rated discharge surge current In (8/20 µs) kA 3 3 3 3 3 3Combined surge Uoc kV 4 4 4 4 4 4Protection level Up• Core – Shield/Core – Ground kV ≤1.2 ≤1.2 ≤1.2 ≤1.2 ≤1.2 ≤1.2Response time ta ns 25 25 25 215 25 25Device protectionRated voltage UN (power supply) V AC 230 -- -- -- -- --Rated current IN/ambient temperature A/°C 16/30 1.5/25 1.5/25 1.5/25 1.5/25 1.5/25Rated arrester voltage Uc (power supply)• L/N V AC 275 -- -- -- -- --

V DC -- 200 6 72 200 72• L-(N)-PE V AC 360 -- -- -- -- --

V DC -- 200 6 72 200 72Rated discharge surge current In (8/20 µs)• Core – Shield kA 3 1 0.65 2.5 1 2.5• Core – Ground kA 3 2.5 2.5 5 2.5 5Combined surge Uoc kV 4 -- -- -- -- --Protection level Up• Core – Shield/Core – Ground kV ≤1.2 ≤0.9 -- ≤0.7/≤0.9 ≤0.9 ≤0.7/≤0.9Output voltage limit at 1 kV/µs• Core - Core V -- ≤360 ≤65 -- -- --• Core – Shield V -- -- -- ≤700 -- ≤700• Core – Ground V -- ≤450 ≤900 ≤900 -- ≤900Residual current at In• Core – Core V -- ≤35 -- -- ≤35 --• Core – Shield V ≤1200 -- -- ≤30 -- ≤30• Core – Ground V ≤900

L-/N/PE≤30 -- ≤30 ≤30 ≤30

Response time ta• Core – Core ns -- ≤25 ≤1 -- ≤25 --• Core – Shield ns ≤25 -- -- ≤100 -- ≤100• Core – Ground ns ≤100

L-/N/PE≤100 ≤100 ≤100 ≤100 ≤100

Limit frequency fG (3 dB) -- -- -- ≥ 1.8 GHz -- ≥ 1.8 GHz• In 100 Ω system (typ.) -- -- 300 kHz -- -- --• In 600 Ω system (typ.) -- 700 kHz -- -- 700 kHz --GeneralTemperature range °C -25 ... +75 Flammability category according to UL 94 V0Degree of protection according to IEC 60529 IP20




12

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PS*/P. unit

kg Unit(s)Surge protection adapters

for line contactor 5SD7 435-0 0.115 1

for telecommunication devices/TAE 5SD7 435-2 0.156 1

for ISDN/RDSI 5SD7 435-3 0.156 1

for TV/radio 5SD7 435-5 0.156 1

for telecommunication devices/RJ12 5SD7 435-6 0.144 1

for SAT installations 5SD7 435-7 0.156 1






5SD7 435-.

Schematics

5SD7 435-0

5SD7 435-2

5SD7 435-3

5SD7 435-5, 5SD7 435-7

5SD7 435-6

I2_1

2708

5263

4236

103

79

LL

+

N N

I2_12616

I2_1

2617

+

La Lb

La Lb

PE N L

+

5 4 6 3

I2_1

2618

+

5b2

4 6a2 b1

3 PE N La1

+

+

I2_1

2619

PE N L

+++

I2_1

2620

a

+

La

3 4 2 5Lb

La Lb

PE N L

+

+

La Lb

La Lb

3 4 2 5

Lightning and Overvoltage Protection DevicesAccessories

For lightning and overvoltage protection devices


12

34567891011121314151617



Design Through-type terminalsOrder No. 5SD7 490-1Requirement category IEC 61643-1:11998-02,

UL 1059, UL 486E

Rated voltage Un V AC 230Rated current In (at 30 °C) A 125Rated arrester voltage Uc V 500 DC/ACMax. required back-up protection A 125 gL/gGShort-circuit strength at max. back-up protection

kArms 25

Temperature range °C -40 ... +85Degree of protection IP20Conductor cross-section• Finely stranded mm2 0.5 ... 25• Solid mm2 0.5 ... 35Mounting width according to DIN 43880 MW 1


PS*/P. unit

kg Unit(s)Through-type terminals

for simple wiring in various wiring versions 5SD7 490-1 0.191 1

Connectors

5SD7 418-0

for 5SD7 41. lightning arresters, requirement category B, type 1, class I• Lightning arresters L/N Ifi 50 kAeff

for 5SD7 41 lightning arresters. 5SD7 418-1 0.240 1

• Lightning arresters N/PE for 5SD7 41. lightning arresters and 5SD7 44. arrester combinations.

5SD7 418-0 0.240 1

5SD7 448-1

for 5SD7 44. arrester combinations, requirement category B, type 1, class I• Lightning arresters L/N Ifi 25 kAeff 5SD7 448-1 0.129 1/100• Lightning arresters N/PE

for 5SD7 41. lightning arresters and 5SD7 44. arrester combinations.

5SD7 418-0 0.240 1

5SD7 428-1

for 5SD7 42. surge arresters and 5SD7 44. arrester combi-nations, requirement category C, type 2, class II• Surge arresters L/N

for 5SD7 42. surge arresters and 5SD7 44. arrester combinations.

5SD7 428-1 0.052 1

• Surge arresters N/PE 5SD7 428-0 0.049 1

5SD7 468-1

for 5SD7 46. surge arresters, requirement category C, type 2, class II• Surge arresters L/N 5SD7 468-1 0.051 1• Surge arresters N/PE 5SD7 488-0 0.040 1


Lightning and Overvoltage Protection DevicesAccessories

For lightning and overvoltage protection devices


For busbars for lightning and overvoltage protection devices, see chapter "Busbars for modular installation devices"


5SD7 490-1


PS*/P. unit

kg Unit(s)Connectors

5SD7 437-1

for surge arresters, wide version, 2-pole, 5SD7 432-., requirement category D, type 3, class III• Rated voltage Un = 230 V 5SD7 437-1 0.028 1• Rated voltage Un = 120 V 5SD7 437-2 0.027 1• Rated voltage Un = 60 V 5SD7 437-3 0.026 1• Rated voltage Un = 24 V 5SD7 437-4 0.027 1

for surge arresters, wide version, 4-pole, 5SD7 434-1, requirement category D, type 3, class III

5SD7 438-1 0.162 1

I2_1

2709

45 90

43,56,71864


catalogue siemens lightning and overvoltage protection devices

Automotive