90230E.fm/2

protectload protection

general presentation of NG125 circuit-breakers

circuit-breaker functions in electrical distribution

medium

powerswitchboards

incomer50…125 A

incomer250…1600 A > 32 kA

lineoutgoers50…400 A

mainincomer

loads

incomer50…160 A 15…35 kA

incomer50…400 A 25…70 kA

lineoutgoers50…125 A

directoutgoers50…80 A

lineoutgoers50…125 A

loads loads

incomer50…125 A

final switchboard incomer

direct outgoerslocal load protection

highpowerswitchboards

finalswitchboards

directoutgoers10…80 A

mainincomer

directoutgoers10…50 A

finaloutgoers10…32 A

finaloutgoers10…32 A

loads loads

3…25 kA3…25 kA

Schneider ElectricUpdated: 09/11/99

Schneider Electric

protectload protection

general presentation of NG125circuit-breakers

modular switchboard incomer: overview of the Merlin Gerin solutionsThe NG125 range is the first to offer protection specially designed for the modular enclosure incomer. Combined with the Distribloc splitter, it enables rapid production of an "incomer" assembly providing users with all the functions they require:

� extensive choice of indication functions for local or remote enclosure monitoring,� rapid, safe intervention,� a selective option for outgoers, providing optimum continuity of supply.

Schneider is thus the only manufacturer to propose a complete offer specifically designed for the modular enclosure incomer.

rated with protection

current circuit-breaker residual current circuit-breaker residual current device

+ +

Compact NSA160 Vigicompact NSA160NA Vigicompact NSA160

+ +

NG125 Vigi NG125NA Vigi NG125

+

C120 ID100/125 Vigi C120

functions

manual operating � � �

mechanism

isolation � � �

remote � � �

opening

overcurrent � �

protection

earth leakage � �

protection

160 A

125 A

T R T R

NG125

MERLIN GERIN

I . ON

NG125

MERLIN GERIN

I . ON

déconnecter

avant test

diélectrique

disconnect

for

dielectric

test

27508

I ∆ n (%)

A

-25 ° C

vigi L 125

I ∆ 0,3A 3A

I/S/S+

test mensuel

test monthly

4060

10

80

set

0,3

1

3

0,5

01

60

150

s

I ∆n

∆ t (ms)

NG125

MERLIN GERIN

I . ON

déconnecter

avant test

diélectrique

disconnect

for

dielectric

test

27508

I ∆ n (%)

A

-25 ° C

vigi L 125

I ∆ 0,3A 3A

I/S/S+

test mensuel

test monthly

4060

10

80

set

0,3

1

3

0,5

01

60

150

s

I ∆n

∆ t (ms)

O-OFF

O-OFF

T

OFFO-OFF

O-OFF

T

+ +

+

90230E.fm/3Updated: 09/11/99

90230E.fm/4

protectload protection

general presentation of NG125 circuit-breakers

without protection installation

switch-disconnector trip-free switch-disconnector

+

Interpact INS160 Compact NSA160NA + auxiliaries on rail

Interpact INS125

multi 9modularinstallationsystem

+

NG125NA + auxiliaries

I125

� �

� �

�

N

.1 .2.4

N

.1 .2.4

MgMX

NG125

MERLIN GERIN

I . ON

Schneider ElectricUpdated: 09/11/99

Schneider Electric

protectload protection

general presentation of NG125circuit-breakers

NG125

MERLIN GERIN

6T3

terminalshield

combbusbars

insulatedsub-distributionterminal

tunnel terminalfor 70 mm2

aluminiumcable

special70 mm2

lug

screwshield

accessories for lugs and busbars

SDVauxiliary

MXVauxiliary

Vigi modulefixedadjustable

Vigi moduleterminal shields

rotary handledistriblocsplitter

circuit-breaker or switchauxiliaries

additionalinformation

90230E.fm/5Updated: 09/11/99

90233E.fm/2 Schneider ElectricUpdated: 5/07/01

NG125N circuit-breakersB, C and D curvesIEC 60947-2: 25 kA

function This circuit-breaker is specially designed for functions requiring a high breaking capacity (up to 25 kA):- modular enclosure incomer,- main incomer in sub-distribution switchboards,- outgoer, protection of loads directly supplied by a power switchboard.

description common technical data# rating: 10…125 A# reference temperature: 40 °C# Uimp: 8 kV# Ui: 690 V# maximum voltage rating: 500 V AC# breaking capacity:as in IEC 60947.2

# weight (g):type 1P 2P 3P 4P

240 480 720 960

# compatible with the Pragma F24 and Prisma G/GX enclosures and the Prisma P cabinets,#�degree of protection: IP20B (IP40D for the part outside the enclosure)# connection:5 6 63 A ratings: tunnel terminals for 1.5 to 50 mm2 copper cables5 80 to 125 A ratings: tunnel terminals for 16 to 70 mm2 copper cables5 aluminium cables, copper cables with lug or busbar (see connection accessories)5 on 3P and 4P: upstream voltage taps on each pole, by 6.35 mm Fast-on lugs, for auxiliary circuit supply

B curve# the magnetic trip units operate at 4 In ± 20 %

C curve# the magnetic trip units operate at8 In ± 20 %

D curve# the magnetic trip units operate at12 In ± 20 %

type voltage breaking capacity(V AC) (A)

1P 220…240 250001P 380…415 6000 (1)2, 3, 4P 380…415 25000(1) 1-pole breaking capacity in the IT isolated neutral system (double fault).

# isolation with positive break indication# 3-position toggle: open-tripped-closed# built-in padlocking facility on 3P and 4P# fault display on front face by:5 fault indicator5 position of toggle: tripped# test button to check proper operation of the tripping mechanism # fast closing# electrical durability: 10 000 cycles at In# tropicalisation as in IEC 68.1: treatment 2 (relative humidity: 95 % at 55 °C)

catalogue numbers type rating catalogue width(A) number in mod.

of 9 mmNG125N B curve

3P 80 18663 9100 18664 9125 18665 9

4P 80 18666 12100 18667 12125 18668 12

531

642

7531

8642

protectcircuit protection

90233E.fm/3Schneider Electric Updated: 5/07/01

NG125N circuit-breakersB, C and D curvesIEC 60947-2: 25 kA

catalogue numbers type rating catalogue width(A) number in mod.

of 9 mmNG125N C curve

1P 10 18610 316 18611 320 18612 325 18613 332 18614 340 18615 350 18616 363 18617 380 18618 3

2P 10 18621 616 18622 620 18623 625 18624 632 18625 640 18626 650 18627 663 18628 680 18629 6

3P 10 18632 916 18633 920 18634 925 18635 932 18636 940 18637 950 18638 963 18639 980 18640 9100 18642 9125 18644 9

3P + N 80 18646 12100 18647 12125 18648 12

4P 10 18649 1216 18650 1220 18651 1225 18652 1232 18653 1240 18654 1250 18655 1263 18656 1280 18658 12100 18660 12125 18662 12

1

2

31

42

531

642

531N

642N

7531

8642

protectcircuit protection

18617

18628

18644

18648

18662

90233E.fm/4 Schneider ElectricUpdated: 5/07/01

NG125N circuit-breakersB, C and D curvesIEC 60947-2: 25 kA

catalogue numbers type rating catalogue width(A) number in mod.

of 9 mmNG125N D curve

3P 80 18669 9100 18670 9125 18671 9

4P 80 18672 12100 18673 12125 18674 12

additionalinformation

auxiliaries: page 90250/2accessories: page 90251/2Vigi module: page 90243/2discrimination table: page 92511/2

dimensions: page 90148/2derating: page 92515/2tripping curves: page 90180/2

531

642

7531

8642

protectcircuit protection

90236E.fm/2

circuit protectioncircuit-breakers up to 80 A

NG125H circuit-breakersC curveIEC 947.2: 36 kA

function This circuit-breaker is specially designed for functions requiring a high breaking capacity (up to 36 kA):- main incomer in the sub-distribution switchboards;- outgoer, protection of loads directlysupplied by a power switchboard.

description common technical data� rating: 10…80 A� reference temperature: 40 °C� Uimp: 8 kV� Ui: 690 V� maximum voltage rating: 500 V AC� breaking capacity:as in IEC 947.2

� electrical durability: 10 000 cycles at In� tropicalisation as in IEC 68.1: treatment 2 (relative humidity: 95 % at 55 °C)� weight (g):type 1P 2P 3P 4P

240 480 720 960type voltage breaking capacity

� compatible with Pragma F24 and PrismaG/GX enclosures and Prisma P cabinets� degree of protection: IP20B (IP40D for the part outside the enclosure)� connection:� � 63 A ratings: tunnel terminals for 1.5 to50 mm2 copper cables� 80 A rating: tunnel terminals for 16 to70 mm2 copper cables� connection of aluminium cables, copper cables with lug or busbar for 3P and 4P (see connection accessories)� upstream voltage taps on each pole, by 6.35 mm Fast-on lugs, for auxiliary circuit supply

C curve� the magnetic trip units operate at 8 In ± 20 %

(V) AC (A)

1P 220…240 360001P 380…415 9000 (1)2, 3, 4P 380…415 36000(1) 1-pole breaking capacity in the IT isolated neutral system (double fault).

� isolation with positive break indication� 3-position toggle: open-tripped-closed� built-in padlocking facility on 3P and 4P� fault display on front face by:� fault indicator� position of toggle: tripped� test button to check proper operation ofthe tripping mechanism� fast closing

catalogue numbers type rating catalogue width(A) number in mod.

of 9 mmNG125H C curve

1P 10 18705 316 18706 320 18707 325 18708 332 18709 340 18710 350 18711 363 18712 3

1871280 18713 3

2P 10 18714 616 18715 620 18716 625 18717 632 18718 640 18719 650 18720 663 18721 680 18722 6

18721

1

2

31

42

Schneider ElectricUpdated: 09/11/99

Schneider Electric

circuit protectioncircuit-breakers up to 80 A

NG125H circuit-breakersC curveIEC 947.2: 36 kA

catalogue numbers type rating catalogue width(A) number in mod.

of 9 mmNG125H C curve (continued)

3P 10 18723 916 18724 920 18725 925 18726 932 18727 940 18728 950 18729 963 18730 980 18731 9

18730

4P 10 18732 1216 18733 1220 18734 1225 18735 1232 18736 1240 18737 1250 18738 1263 18739 1280 18740 12

18739

additionalinformation

auxiliaries: page 90250/2accessories: page 90251/2Vigi module: page 90243/2discrimination table: page 92511/2

dimensions: page 90148/2derating: page 92515/2tripping curves: page 90180/2

531

642

7531

8642

90236E.fm/3Updated: 09/11/99