busbar size, material and distribution system

7/29/2019 Busbar Size, Material and Distribution System

1/52

Busbars and

distributin

12

PowEr guidE 2009 / Book 12


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01

Distribution and standards 02

Sauory condiions for he proecion of branchor disribued lines 04

Sizing busbars 06

Deermining he usable cross-secion of he bars 06

Checking he permissible hermal sress 12

Deermining he disances beween suppors 13

Magneic effecs associaed wih busbars 20

Checking he insulaion characerisics 23

Shaping and connecting bars 26

Rigid bars 26

Flexible bars 30

Curren ransformers (Ct) 31

Distribution blocks 32

Characerisics of disribuion blocks 33

Phase balancing 36

Legrand disribuion blocks 40

Choice of products 46


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B u S B a r S a n D D i S T r i B u T i o n

02

DiStRibutio

na

nDS

tanDaRDS

Distribution

and standards Distribution can be defined as supplyingpower to a number of physically separate

and individually protected circuits from

a single circuit.

Upstream protection

device

Distribution

Downstream protection

devices

I1 I2 I3 I4

I

^ M bsb t the tp f the eclsewth 2 cppe bs pe ple

^ Bch bsb cble sleeve:C-sect lmm bs

Dependng on the crcuts to be suppled, dstrbutonwll be v busbrs (flt or C-secton copper orlumnum brs, see p 06), v prefbrcted dstr-buton blocks (power dstrbuton blocks, modulrdstrbuton blocks, dstrbuton termnl blocks,see p 32) or v smple supply busbrs accordngto the stndrds, devce provdng protecton gnstshort crcuts nd overlods must be plced t thepont where chnge of cross-secton, type, nstll-

ton method or composton leds to reductonn the current-crryng cpcty (iEC 60364-4-43)


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03

DiStRibutio

na

nDS

tanDaRDS

P1S1

P2

S2 < S1

if were appled o he leer, hs rle wold lead

o over-szng of cross-secons for fal condons

the sandard herefore allows for here o be no

proecon devce a he orgn of he branch lne

sbjec o wo condons

upsream devce P1 effecvely proecs he branch

lne S2

or he branch lne S2

s less han hree mereslong, s no nsalled

near any combsble

maerals and every

precaon has been

aken o lm he rsks

of shor crcs

there s no oher ap-off

or power socke on he

branch lne S2 psream

of proecon P2

P1S1

P2

S2 < S1L < 3 m

P1 S1

P2

S2 < S1

P1

P2 P2

P3

S1

I14I13I12I11

S2

S3

I1

It

I24I23I22I21

S2I2

1st level

2nd level

Multi-level distribution

This layout can be used for exam-ple when several distributionblocks (2nd level) are suppliedfrom a single busbar (1st level).If the sum of the currents tappedoff at the first level (I1, I2, etc.)is greater than It, a protectiondevice P2 must be provided on S2. Conductorcross-sections:

S3< S2

S2< S1

Theore tica l layout

P1 protects S1P2 protects S2There is no reduction incross-section before P2

< Modulardistributionblock ^ Distribution via supply busbars


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04

StatutoRY

ConDitionS

FoRP

RotECtinGb

Ra

nCHo

RD

iStRibutEDL

inES


0404

Dsruonnd sndrds (connued)

STATUTORY CONDITIONS FOR PROTECTINGBRANCH OR DISTRIBUTED LINES

1 SUmmARY OF THE GENERALPRINCIPLE FOR CHECkING THERmALSTRESSFor nsuled cles nd conducors, he rekngme of ny curren resulng from shor crcuoccurrng ny pon mus no e longer hn heme ken for he emperure of he conducors orech her permssle lmths condon cn e verfed y checkng h heherml sress KS h he conducor cn whsnds greer hn he herml sress (energy i) h he

proecon devce llows o pss

2 CHECkING THE PROTECTIONCONDITIONS OF THE BRANCH LINE(S)wITH REGARD TO THE THERmALSTRESSESFor rnch lnes wh smller cross-secons (S2 300 < 300 > 300

Initial teperature C 70 90 90 60 70 105

Final teperature C 160 140 160 140 250 200 160 250

k values

Copper conductor 115 103 100 86 143 141 115135-115

Aluiniu conductor 76 68 66 57 94 93 - -

Connections solderedith tin solder for copperconductors

115 - - - - - - -


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05

StatutoRY

ConDitionS

FoRP

RotECtinGb

Ra

nCHo

RD

iStRibutEDL

inES

05

S1 crrespds he crss-sec f he m

cducr d S2 he crss-sec f he rchcducrthe mxmum legh f he rch cducrwh crss-sec S2 h s preced gs shrcrcus y prec devce P1 plced p a srepreseed y segme on i c e see usg hsreprese h he preced legh f he rchle decreses he furher wy he p-ff p sfrm prec P1, up he prh f y S2smller crss-sec p-ff he pex f hergle, bths mehd c e ppled shr-crcu prec- devces d hse prvdg prec gs

verlds respecvely, s lg s devce P2 effecvelyprecs le S2 d here s her p-ff eweeps a d o

4 3 mETRE RULE APPLIED TOOVERLOAD PROTECTION DEVICES

Whe prec devce P1 plced he hed f le S1des hve y verld prec fuc r schrcerscs re cmple wh he verldprec f he rch le S2 (very lg crcus,sgfc reduc crss-sec), s pssle

mve devce P2 up 3 m frm he rg (o) f hep-ff s lg s here s p-ff r pwer scke hs pr f usr sysem d he rsk f shrcrcu, fre d jury s reduced he mmum frhs pr (use f refrced sul cducrs,shehg, sepr frm h d dmgg prs)

5 EXEmPTION FROm PROTECTION

AGAINST OVERLOADS

the dgrm ve llusres hree exmples fp-ffs (S1, S2, S3) where s pssle prvdey verld prec r smply check wheherhs cd s me

- busr sysem S2 s effecvely preced gsverlds y P1 d he usr sysem des hvey p-ffs r pwer sckes upsrem f P2- busr sysem S3 s lkely hve verld cur-res rvellg ver d he usr sysem des hve y p-ffs r pwer sckes upsrem f P3 busr sysem S4 s eded fr cmmuc,crl, sgllg d smlr ype fucs d heusr sysem des hve y p-ffs r pwersckes upsrem f P4

P1

L1

L2

A

A O

N

B

B

M

N

P2

P2

P2S2

S2

S2

S2S1

P1A O

B

P2

S1

< 3m S2

P1A O2 O3 O4

S2 S3 S4

B2 B3 B4

P2 P3 P4

S1


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06

DEtERMinin

G

tHEuSabLECRoSS-SECtionoF

tHEbaRS

Sizingbusbars The busbar constitutes the real backbone

of any distribution assebly. The ain busbarand branch busbars supply and distributethe energy.

DETERmINING THE USABLE CROSS-SECTION OF THE BARS

the requred cross-secon of he rs s deermnedccordng o he operng curren, he proeconndex of he enclosure nd fer checkng he shor-crcu herml sressthe currens re nmed n ccordnce wh hedefnons n sndrd iEC 60947-1 ppled o heusul operng condons for emperure rse Aof he rs whch does no exceed 65C

< Tempete se testf 3 x 120 x 10 peple bsb spptCt. n. 374 54

Ie: rated operating current to be taken intoconsideration in enclosures with natural ventilationor in panels with IP < 30 protection index (abientinternal teperature < 25C).

Ithe: thermal current in enclosure correspondingto the ost severe installation conditions. Sealedenclosures do not allow natural air change, as the IPprotection index is greater than 30 (abient internalteperature< 50C).

Cets ccdgt std d iEC 6094 7-1

The current-carrying capacity in n bars is less thann ties the current-carrying capacity in one bar.Use n = 1.6 to 1.8 for a group of 2 bars, n = 2.2 to 2.4for 3 bars and n = 2.7 to 2.9 for 4 bars.The wider the bars, the ore coefficient n is affected,the ore difficult they are to cool and the higherthe utual inductance effects.The perissible current density is not thereforeconstant: it is approximately 3 A/mm2 for sall barsand falls to 1 A/2 for groups of large bars.

Pllel bs

busrs cn e creed usng copper or lumnumrs Fl copper rs re used for usrs up o4000 a wh Legrnd suppors they provde greflexly of use, u requre mchnng on reques(see p 26) Legrnd lumnum rs re mde ofC-secon rls Connecon s crred ou whoudrllng, usng specl hmmer hed screws

they re used for usrs up o 1600 a, or 3200 ay doulng he suppors nd he rsthe elecrcl nd mechncl chrcerscs ofLegrnd usr suppors, nd src complnce whhe mxmum nsllon dsnces, ensure soloneween he poles nd h he rs cn resshe elecrodynmc forces


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08

DEtERMinin

G


tHEbaRS

Sizing busbars(continued)

< SpptsCt. n. 37324 cbe sed t cete veyhgh cet bsbs:p t 4000 a iP 55

XL3 4000 eclses

2.2. mounting bars edgewise on supports Cat. Nos. 373 24/25

^ Bs mted edgewse vetcl hztl bsbs:sppts hztl pst

Ie (A) IP < 30 Ithe (A) IP > 30 Nuber Di. () I2t (A2s) Icw1s (A)

700 630 1 50 x 5 114 x 109 33,750

1180 1020 2 50 x 5 456 x 109 67,500

1600 1380 3 50 x 5 103 x 1010 101,250

2020 1720 4 50 x 5 182 x 1010 135,000

800 700 1 63 x 5 181 x 109 42,525

1380 1180 2 63 x 5 723 x 109 85,050

1900 1600 3 63 x 5 163 x 1010 127,575

2350 1950 4 63 x 5 289 x 1010 170,100

950 850 1 75 x 5 256 x 109 50,625

1600 1400 2 75 x 5 103 x 1010 101,250

2200 1900 3 75 x 5 231 x 1010 151,875

2700 2300 4 75 x 5 410 x 1011 202,500

1000 900 1 80 x 5 292 x 109 54,000

1700 1480 2 80 x 5 117 x 1010 108,000

2350 2000 3 80 x 5 262 x 1010 162,000

2850 2400 4 80 x 5 467 x 1010 216,000

1200 1050 1 100 x 5 456 x 109 67,500

2050 1800 2 100 x 5 182 x 1010 135,000

2900 2450 3 100 x 5 410 x 1010 202,500

3500 2900 4 100 x 5 729 x 1010 270,000

1450 1270 1 125 x 5 712 x 109 84,375

2500 2150 2 125 x 5 285 x 1010 168,750

3450 2900 3 125 x 5 641 x 1010 253,125

4150 3450 4 125 x 5 114 x 1011 337,500

1750 1500 1 160 x 5(1) 117 x 1010 108,0003050 2450 2 160 x 5(1) 467 x 1010 216,000

4200 3300 3 160 x 5(1) 105 x 1011 324,000

5000 3800 4 160 x 5(1) 187 x 1011 432,000

(1) Stainless steel threaded assembly rod, diameter 8 to be supplied separately and cut to length

rgd flt cppe bs, 5 mm thck


11/52

09

DEtERMinin

G


tHEbaRS

10mm5mm

^ 1 to 4 bas, 5 mm thick, pe pole ^ 1 to 3 bas, 10 mm thick, pe pole^ Simply otate the isolating suppotsto take 5 o 10mm thick bas

Ie (A) IP < 30 Ithe (A) IP > 30 Number Dim. (mm) I2t (A2s) Icw1s (A)

950 850 1 50 x 10 456 x 109 67,500

1680 1470 2 50 x 10 182 x 1010 135,000

2300 2030 3 50 x 10 410 x 1010 202,500

1150 1020 1 60 x 10 656 x 109 81,000

2030 1750 2 60 x 10 262 x 1010 162,000

2800 2400 3 60 x 10 590 x 1010 243,000

1460 1270 1 80 x 10 117 x 1010 108,000

2500 2150 2 80 x 10 467 x 1010 216,000

3450 2900 3 80 x 10 105 x 1011 324,000

1750 1500 1 100 x 10 182 x 1010

135,0003050 2550 2 100 x 10 729 x 1010 270,000

4150 3500 3 100 x 10 164 x 1011 405,000

2000 1750 1 120 x 10 262 x 1010 162,000

3600 2920 2 120 x 10 105 x 1011 324,000

4800 4000 3 120 x 10 263 x 1011 486,000

rigid flat coppe bas, 10 mm thick

Positioning bars edgewise encourages heatdissipation and is much the best option. If thebars have to be positioned flatwise (with thesupports in a vertical position) the current-

carrying capacities must be reduced (see nextpage).


12/52


10

DEtERMinin

G


tHEbaRS

Sizing busbars(continued)

2.3. mounting bars flatwise on supports Cat. Nos. 373 24/25

< Bs mted fltwse hztl bsbs: sppts vetcl pst

Ie (A) IP < 30 Ithe (A) IP > 30 Nuber Di. () I2t (A2s) Icw1s (A)500 420 1 50 x 5 114 x 109 33,750

750 630 2 50 x 5 456 x 109 67,500

1000 900 3 50 x 5 103 x 1010 101,250

1120 1000 4 50 x 5 182 x 1010 135,000

600 500 1 63 x 5 181 x 109 42,525

750 630 2 63 x 5 723 x 109 85,050

1100 1000 3 63 x 5 163 x 1010 127,575

1350 1200 4 63 x 5 289 x 1010 170,100

700 600 1 75 x 5 256 x 109 50,625

1000 850 2 75 x 5 103 x 1010 101,250

1250 1100 3 75 x 5 231 x 1010 151,875

1600 1400 4 75 x 5 410 x 1011 202,500

750 630 1 80 x 5 292 x 109 54,000

1050 900 2 80 x 5 117 x 1010 108,000

1300 1150 3 80 x 5 262 x 1010 162,000

1650 1450 4 80 x 5 467 x 1010 216,000

850 700 1 100 x 5 456 x 109 67,500

1200 1050 2 100 x 5 182 x 1010 135,000

1600 1400 3 100 x 5 410 x 1010 202,500

1900 1650 4 100 x 5 729 x 1010 270,000

1000 800 1 125 x 5 712 x 109 84,375

1450 1250 2 125 x 5 285 x 1010 168,750

1800 1600 3 125 x 5 641 x 1010 253,125

2150 1950 4 125 x 5 114 x 1011 337,500

1150 900 1 160 x 5(1)

117 x 1010

108,0001650 1450 2 160 x 5(1) 467 x 1010 216,000

2000 1800 3 160 x 5(1) 105 x 1011 324,000

2350 2150 4 160 x 5(1) 187 x 1011 432,000

(1) Stainless steel threaded assembly rod, diameter 8, to be supplied separately and cut to length

rgd flt cppe bs, 5 mm thck


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11

DEtERMinin

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tHEbaRS

3 FLEXIBLE COPPER BARS

Flexible coppe basIe (A) IP < 30 Ithe (A) IP > 30 Cat. No. Dim. (mm) I2t (A2s) Icw1s (A)

200 160 374 10 13 x 3 2 x 107 4485

320 200 374 16 20 x 4 85 x 107 9200

400 250374 11 24 x 4

12 x 108 11,000374 67 20 x 5

470 320 374 17 24 x 5 19 x 108 13,800

630 400 374 12 32 x 5 34 x 108 18,400

700 500 374 44 40 x 5 53 x 108 23,000

850 630 374 57 50 x 5 83 x 108 28,700

1250 1000 374 58 50 x 10 33 x 109 57,500

2500 2000 2 x 374 58 2 x (50 x 10) 13 x 1010 115,000

Ie (A) IP < 30 Ithe (A) IP > 30 Number Dim. (mm) I2t (A2s) Icw1s (A)

880 650 1 50 x 10 456 x 109 67,500

1250 1050 2 50 x 10 182 x 1010 135,000

2000 1600 3 50 x 10 410 x 1010 202,500

1000 800 1 60 x 10 656 x 109 81,000

1600 1250 2 60 x 10 262 x 1010 162,000

2250 1850 3 60 x 10 590 x 1010 243,000

1150 950 1 80 x 10 117 x 1010 108,000

1700 1500 2 80 x 10 467 x 1010 216,000

2500 2000 3 80 x 10 105 x 1011 324,000

1350 1150 1 100 x 10 182 x 1010 135,000

2000 1650 2 100 x 10 729 x 1010 270,000

2900 2400 3 100 x 10 164 x 1011 405,000

1650 1450 1 120 x 10 262 x 1010 162,000

2500 2000 2 120 x 10 105 x 1011 324,000

3500 3000 3 120 x 10 263 x 1011 486,000

rigid flat coppe bas, 10 mm thick


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12

CHECKinGt

HEPERMiSSibLEtHERMaLStRESS

Sizing busbars(coninued)

)

1010

109

108

107

106

105

104

103

102

101

I2t (A2s

100

Ik (A)100 101 102 103 104 105

I2t of the bar

Limited I2t

160

the hermal sress permied by he bars mus be

greaer han ha limied by he proecion device Cve shwg theml stess lmtedby DPX 250 Er (160 a)

Example: using a 12 x 4 mm rigid flat bar for 160 Aperissible I2t of the bar: 4.7 x 107 A2sProspective rms Ik: 10 kA (104 A)

The theral stress liited by this device canthen be read by plotting the above value on the

liitation curve given for the protection device(in this case, a DPX 250 ER 160 A): 5 x 105 A2s,value less than the I2t peritted by the bar.

CHECkING THE PERmISSIBLE THERmAL STRESS

The axiu theral stress value I2t taen into

consideration for a short-circuit current of less than

5 s is calculated using the formula It = KS, where:

- k = 115 As0.5/ for flexible copper bars

(max. temperature: 160C)

- k = 135 As0.5/for large cross-section rigid

copper bars (width greater than 50 ;max. temperature: 200C)

- k = 143 As0.5/for sall cross-section rigid

copper bars (width less than 50 ) and C-section

bars (max. temperature: 220C)

- k = 91 As0.5/ for rigid aluiniu bars

(max. temperature: 200C)

- S = bar cross-section in

The conventional value of the short-tie withstand

current with regard to theral stress, in relation

to a period of 1 s, is expressed by the formula:

Icw1s = It

Clcltg the theml stess


15/52

13

DEtERMinin

GtHEDiStanCESbEtWEEnSuPP

oRtS

Prospective Ik

Limited Ipk

Non-limited

prospective Ipk

Prospective

rms Ik

Limited Ik

I

t

the dsance eween he suppors s deermned

accordng o he elecrodynamc sress generaed yhe shor crcuthe forces exered eween he ars durng a shorcrcu are proporonal o he peak value of he shor-crcu curren

1 RmS VALUE OF THE PROSPECTIVESHORT-CIRCUIT CURRENT (I)ths s he prospecve maxmum value of he currenwhch would crculae durng a shor crcu f herewere no proecon devce i depends on he ype andpower of he source the acual shor-crcu currenwll generally e lower n vew of he mpedance ofhe usar sysem the calculaon of he values oe aken no accoun s descred n book 4: Szngconducors and selecng proecon devces

2 PEAk CURRENT VALUE (Ip)the lmed peak curren s deermned from hecharacerscs of he proecon devce (see book 5:breakng and proecon devces)i represens he maxmum (peak) value lmed yhs devce if here s no lmng proecon devce,he prospecve peak value can e calculaed from heprospecve shor-crcu curren and an asymmerycoeffcen (see nex page)

DETERmINING THE DISTANCES BETwEEN SUPPORTS

This is the rs value of the short-circuit currentthat ould circulate if there ere no protection device.Ik1: between phase and neutral

Ik2: between 2 phasesIk3: between 3 phases

These values ere forerly called Isc1, Isc2 and Isc3.Do not confuse I ith Ip, hich is defined belo.

Prospectve ik

If in doubt or the actual prospective I valueis not non, use a value of at least 20 x In.

The electrodynaic forces are proportional tothe square of the pea current. It is this valuehich ust be taen into consideration hendeterining the distances beteen the sup-ports.


16/52


14

DEtERMinin


oRtS

Szng busbars(contnued)

n-lmtg ptect devceLmtg ptect devce

Prospective Ik

Limitation

curveNon

-limite

dIpk

limited Ipk

rms Ik (kA)

Ipk(k)

The liitation curves of the protection devices(DX and DPX) give the liited peak current accordingto the prospective short-circuit current (see Book 5Breaking and protection devices).The non-liited peak Ik curve corresponds to noprotection.

The table belo gives the liited peak value (Ipk)directly for the axiu prospective short-circuitvalue equal to the breaking capacity (Icu) of thedevice.For loer prospective short-circuit values, readingthe curves ill provide an optiised value.

when the busbar is protected by a non-liitingprotection device (for exaple DmX), the axiuvalue of the peak current is developed during thefirst half-period of the short circuit. This is referredto as the asyetric 1st peak.

The relationship beteen the peak value and the rsvalue of the prospective short-circuit current is

defined by the coefficient of asymmetry n:

Ipk (peak) = n x prospective rs Ik Device Rating Ipk (peak) ax.

(A) (k)DPX 125 16-25 119

DPX 125 40-63 15

DPX 125 100-125 17

DPX 160 25 143

DPX 160 40 to 160 20

DPX 250 ER 100 to 250 22

DPX 250 40 to 250 27

DPX-H 250 40 to 250 34

DPX 630 250 to 630 34

DPX-H 630 250 to 630 42

DPX 1600 630 to 1600 85

DPX-H 1600 630 to 1600 110

Value

of asymmetric

1st peak

Ik rms value

I

Time

Prospective rs Ik n(kA)

ik < 5 15

5 < ik < 10 17

10 < ik < 20 2

20 < ik < 50 21

50 < ik 22


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15

DEtERMinin


oRtS

General formula for calculating the forces in the event of a short circuit

D: length of the conductor (distancebeteen supports in the case of bars)

E: spacing between conductors

ith F in daN, I in A peak, and D and E in the same unit.

In practice, this formula is only applicable to very long (D > 20 E) round conductors.When D is shorter, a correction, called the end factor is applied:

- For 4 60 - 10

374 81 400 4.9 108 22.2 > 60 - 12

(1) the hermal re lme by he pream evce m be le han he i2 of he rbon block, an he hermal re lme by heownream evce m be le han he i2 of he cable: f neceary aap he cro-econ of he cable.

(2) upper/lower range - (3) spacng beween 50 mm/60 mm bar

legRand dIstRIButIon Blocks

the followng nallaon poble an charac-

erc ha have prevoly been ecrbe: raecrren, hor-crc reance, nlaon vale,nmber an capace of op, connecon meho,enable he mo able choce of rbon block obe eermne.

th lr r f iribi b h f wi riy f rqi-r, prii bh f xi fy.

drbon block(conne)


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41

legrandd

istributionb

loCks

th er ma l s re ss per mi ed by co d cors wi h PVC is la i o

s (2) 1.5 2.5 4 6 10 16 25 35 50 70 95

cpprI2t (a2s) 0.3 x 105 0.8 x 105 0.2 x 106 0.5 x 106 1.3 x 106 3.4 x 106 8.3 x 106 1.6 x 107 3.3 x 107 6.4 x 107 1.2 x 108

Icw(ka) 0.17 0.29 0.46 0.69 1.15 1.84 2.9 4 5.7 8 10.9

ai.I2t (a2s) 5.7 x 105 1.5 x 106 3.6 x 106 7 x 106 1.4 x 107 2.8 x 107 5.2 x 107

Icw(ka) 0.76 1.2 1.9 2.7 3.8 5.3 7.2

1 IndePendent dIstRIButIon teRmInal Blockstolly universl in eir pplicion, is ype of erminl block cn be used o disribue up o 100 a on beween

4 nd 33 oupus, depending on e clogue number. te incoming cross-secion is beween 4 nd 25 mm2,

nd e oupus beween 4 nd 16 mm2. They are fixed on 12x2 fl brs or th 35-15 nd th 35-7.5 rils.

^Combiig IP 2x ermial blocks ad spporCa. no. 048 10 eables a 2P, 3P or 4Pdisribio block o be creaed


44/52

B u s B A r s A n d d I s t r I B u t I o n

42

legrandd

istributionb

loCks

^ spply bba pplie via ivealemial Ca. n. 049 06

2 lexIc suPPly BusBaRs

supply bubar can be connecte irectly an upplypower to Lexic modular devices up to 90 A. They are

available in ingle, two, three an four pole verion.They are a flexible solution, taking up little space, and

are eay to aapt for itribution in row.

^tal cmbiai f fci ig he Lexic ccep. Pwe, cla igallig ae gpe gehe i wiig aea cepig

he phyical aea f he iallai

^A pace i mae i heevice ha ee be cece

he pply bba

ditribution block(continue)

^ diibi via f ple pply bba Ca. n. 049 54 fiewih e pec Ca. n. 049 91


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43

legrandd

istributionb

loCks

3 dIstRIButIon teRmInals

These single pole distribution blocks are fixed directly

i mis of dPX 125, 160 250 er vics

and modular Vistop devices from 63 to 160 A. They areus fo simpifi isibuio fo ps w umb of mi cicuis is imi.

^ toally uiveral, diribuio block are uiablefor all ype of applicaio

^ For he upply ed of medium power diribuio pael,he 250 A modular diribuio block Ca. no. 048 77 caalo be fixed o a plae

4 modulaR dIstRIButIon Blocks

ts combi compcss ig cociocapacity. With a modular profile, they are fixed by

cippig oo th 35-15 is (en 50022). lg

mou isibuio bocks oy iso: y us suppy of p up o 250 a oi subgoups of oupus i ps wi ig powigs.

^ sigle pole modular profile diribuio block, oaliulaio of he pole o diribue 125 o 250 A

^ six 35 mm2 rigid oupu (25 mm2 flexible)for he oupu ermial Ca. no. 048 67


46/52


44

legrandd

istributionb

loCks

6 stePPed dIstRIButIon Blocks

these re vilble in clogue versions, compleen fully-ssemble from 125 o 400 a, n in moulr version (brs n suppors o be orereseprely) h cn be use o cree cusomise

isribuion.

5 extRa-flat dIstRIButIon Blocks

their lower heigh n heir curren-crryingcpciies men h he sme pnel cn mnge

the power requirements for the supply end (up to250 a) combine wih he compcness of moulrrows in slim pnels.

< the key feae fexa-fla iibiblck ae pwe,capaciy ceclage c-eci cable acmpace.

< 125 A eppeiibi

blck

< 250 A iibiblckCa. n. 374 35

^ 400 A eppe iibi blck

disribuion blocks(coninue)


47/52

45

legrandd

istributionb

loCks

7 sIngle Pole alumInIum/coPPeRconnectIon Boxesdesige o provie he ierfce ewee lrge

cross-secio coucors eerig he pel,icluig hose me of lumiium, ierl

wirig coucors.two moels 120 mm2/70 mm2 (C.no. 374 80) 300 mm2/185 mm2

(C. no. 374 81) re ville.they c lso e use for lumi-ium operig circuis (ougoigcles) or whe he lie leghsrequire the use of large cross-secios.

8 vIkIng3 PoWeR teRmInalBlocksthese sigle pole locks re use for he juciobetween the enclosure and the external cables. They

are fixed on a4 ril or ple ke Cab 3 Duplix labelling. They provide numerous solutions

for coecio wih lumiium or copper cles,wih or wihou lugs.

diffr i firi br by ipy i h b prip.

Equipoenial linkbeween wo boxesusing srips provie

All Viking3 erminal blocks: see Book 11

< Alumin./copper irecconnecion

Cable/cable

terminal for cable lug/Cable

terminal for cable lug/terminalfor cable lug

Cable/terminal for cable lug

Al/Cu

Juncion disribuion Branch-line

Cu Cu

CuCu

Al/Cu

Cu


48/52


46

ChoiCeo

fP

roduCts

chi prds

spply bba fm 63 90 A (Ipk 17 k)

typ lghuivrs

1-p + rr 1-p

2-p2-p bd

3-phs3-p 4-p

Prg-yp1 row 049 26 049 38 049 40 049 42 049 44

meter 049 37 049 39 049 41 049 43 049 45

rk-yp1 row 049 11 - 049 17

meter 049 12 049 14 049 18 049 20

diibi emial blck fm 63 100 A (Ipk 10 k)

nmbr ps

Br rmi bks Isd rmi bks IP 2x (xxB)wih srws sppr bk b gr

4 048 01 048 20 048 50 048 40 048 30

6 048 16 048 15

8 048 03 048 22 048 52 048 42 048 32

12 048 24 048 54 048 44 048 34

14 048 05

16 048 25 048 45 048 35

19 048 06

21 048 26 048 46 048 36

24 048 07

33 048 28 048 48 048 38

Mla iibi b lck fm 40 250 A (Ipk 14.5 42 k)

admissibmximmrig (a)

2-p 4-p trmi bks IP 2x

c.ns

nmbr d si fxib drs (mm) c.ns

nmbr d si fxib drs (mm) erh nr

addiips(mm)Ips ops Ips ops

40 048 81 2 x 10 11 x 4 048 85 2 x 10 11 x 4 048 34 048 44 12 x 6

100 048 80 2 x 16 5 x 10 048 84 2 x 16 5 x 10 048 32 048 42 8 x 6

125

048 82 2 x 2 5 2 x 16 + 11 x 1 0 048 86 2 x 2 5 2 x 16 + 7 x 10 048 44 12 x 6

048 88 2 x 25 2 x 25 + 11 x 10 048 35 048 45 16 x 6

048 76 1 x 35 1 x 25 + 1 x 16 +14 x 10

048 46 21 x 6

160 048 79 1 x 702 x 25 + 4 x 16 +

8 x 10048 45 16 x 6

250 048 77 1 x 1201 x 35 + 2 x 25 +

2 x 16 + 6 x 10

049 26 049 11

048 03 048 15 048 68


49/52

47

ChoiCeo

fP

roduCts

single pole modular ditribution block and ditribution terminalfrom 125 to 250 A (Ipk 27 to 60 k)

admiibl mximumrtig (a)

ct.nnumbr d ti dutr pr pl

(mm)

Iput output

mdulr ditributiblk

125 048 71 4 x 35 12 x 10

160 048 83 1 x 50 3 x 25 + 2 x 16 + 7 x 10

250 048 73 1 x 120 6 x 25 + 4 x 10

ditributi trmil

160 048 67direct into ownstream

terminal6 x 25

250 048 68direct into ownstream

terminal4 x 35 + 2 x 25

Power ditribution bl ock from 125 to 400 A (Ipk 20 to 75 k)


extr-ft stppd

ct.n

numbr d ti dutr pr pl (mm) ct.n

numbr d ti dutr pr pl (mm)

Iput output Iput output

125374 47 1 x 35

10 x 16 (Ph)17 x 16 (N)

373 954 bars 12 x 4 mm receiving 5

connectors 2 x 10 each

374 30 1 x 35 5 x 25

160 374 31 1 x 70 5 x 35

250 374 00 1 x 1501 x 70 or 1 x 50 +1 x 35 or 2 x 35

374 35 1 x 120 5 x 50

400373 08 2 x 8.5 mm

21 holes M6

70 mm max.connectors

374 42 2 x 18515 holes M6

+ 15 holes M8

Aluminium/copper ditribution boxe


ct. nnumbr d ti dutr pr pl (mm)

Iput lumiium Iput ppr output ppr

300 374 80 1 x 120 1 x 95 1 x 70

540 374 81 1 x 300 1 x 150 1 x 150

048 83 048 88 374 00 373 08


50/52


48

ChoiCeo

fP

roduCts

Ilaig pp a cppe ba

Bsbr spportsI adissib i rtig (a)

125 160 250 400 800 1000 1600 4000

uivrs spports1-po 373 98 374 37

4-po 373 96 374 32 374 36 373 10

xl spports 4-po 373 15 373 20 373 21 373 22/23 373 24/25

mi br of brs pr po

copprbrs

12 2 373 88 1

12 4 373 89 1 1

15 4 374 33 1

18 4 374 34 1 1 1 1

25 4 374 38 1 1

25 5 374 18 1 1

32 5 374 19 1 1

50 5 374 40 1 1 2 4

63 5 374 41 1 2 4

75 5 374 59 1 2 4

80 5 374 43 1 2 4

100 5 374 46 2 4

125 5 - 4

50 10 - 3

60 10 - 3

80 10 - 3

100 10 - 3

125 10 - 3

Ilaig pp f C-eci bba a almiim ba (p- 1600 A)

Isotig spport

eosr dpth () Brs igd Brs stggrd

475 or 725 373 66 373 67

975 373 68 373 69

373 24 373 10 373 66

aiic-stio brs

cross stio () ct.nos

524 373 54

549 373 55

586 373 56

686 373 57

824 373 58


51/52


52/52

Power guide:A complete set of technical documentation

wl Haqats an

intnatnal dpatmnt87045 Limoges Cedex - France

: + 33 (0) 5 55 06 87 87Fax : + 33 (0) 5 55 06 74 55

11 | Cabln

cmpnnts an

cntl axlas

CE

RTI

FIED

10 | enclss

an assmbly

ctfcatn

09 | opatn

fnctns

08 | Ptctnaanst xtnal

stbancs

01 | Sstanablvlpmnt

02 | P balanc

an chc f p

spply sltns

03 | elctcal

ny spply

04 | Szn cncts

an slctn

ptctn vcs

05 | Bakn

an ptctn

vcs

06 | elctcal

hazas an

ptctn ppl

07 | Ptctn

aanst lhtnn

ffcts

Annxs

glssay

Lxcn

13 | Tanspt an

stbtn ns

an nstallatn

EX29016

12 | Bsbas

an stbtn

busbar size, material and distribution system

Documents