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ABB Circuit Breaker Model

The world of the electrical power distribution changes fast and major new trends such as energyefficiency, connectivity and smart grids are now crowding onto the stage. These trends lead to new applications and market requirements that ABB SACE low-voltage circuit breakers are able to satisfy with high quality, accuracy and reliability.

There are some models of ABB circuit breaker:

SH201-C16, GSH201-C2, SH201-C20, GSH201-C63, SH201-C63, GSH201-C32, GSJ201 AC-C20/0.03, GSH201 AC-C10/0.03, GSJ201 AC-C25, GSH201 AC-C63/0.03, GSH201 AC-C32/0.03, GSN201L-C16, S201M-C16, S203-C50, S201M-K16, GSH202AC-C40, GSH202-C63,S202M-C6DC, S202M-C10DC, S202M-C16DC, S202M-C20DC, S203-C63,  S203-C80, SH203-C50, S203-C100, SH203-C32, SH204-C25, SH204-C40, SH204-C63, T6N630, T1N160, T7S1250, T5N630, T5N400, T3N250, T2S160, T1C160, A2N150, A2B250, A1N125, A1C125, A1A125, T5S400 PR22

1sda054396r1 1sda068059r1 1sda054929r1  abb pr221ds trip unit settings 1sda054117r1 1sda068126r1 1sda054333r1 abb sace tmax t5n 400 circuit breaker

2CCA880100R0001
CMS-100PS Sensor 18mm, 80A AC, DC, TRMS, mounting for pro M compact & SMISSLINE 1 piece
2CCA880101R0001
CMS-101PS Sensor 18mm, 40A AC, DC, TRMS, mounting for pro M compact & SMISSLINE 1 piece
2CCA880102R0001

ABB Tmax Molded Case Circuit Breaker XT1C160 TMD 63A80A100A160A 3P / 4P Air Switch
ABB Tmax Molded Case Circuit Breaker XT1N160 / XT3N250 3P / 4P80A100A160A250A Air Open
Model: XT3N250 MA200 / 1200-2400 3p FF

abb circuit breakers high voltage
CMS-102PS Sensor 18mm, 20A AC, DC, TRMS, mounting for pro M compact & SMISSLINE 1 piece
2CDS200909R0001
S2C-A1 S2C-A1 - Shunt Trip 1 piece
2CDS200909R0002
S2C-A2 S2C-A2 - Shunt Trip 1 piece
2CDS200912R0001
S2C-H6R S2C-H6R - Auxiliary Contact 1 piece
2CDS200918R0001
S2C-NT S2C-NT - Hand Operated Neutral 1 piece
2CDS200922R0001
S2C-S/H6R S2C-S/H6R - Signal / Auxiliary Contact 1 piece
2CDS200936R0001

Brand: ABB

Series: Tmax XT

Shell frame rated current: 250A

Number of Poles: 3P
Rated current: 200A

Rated ultimate breaking capacity: 36kA

Release type: MA

Release type: electromagnetic

abb circuit breakers distributors
S2C-H11L S2C-H11L - Auxiliary Contact 1 piece
2CDS200936R0002
S2C-H20L S2C-H20L - Auxiliary Contact 1 piece
2CDS200936R0003
S2C-H02L S2C-H02L - Auxiliary Contact 1 piece
2CDS200946R0001
S2C-H6-11R S2C-H6-11R - Auxiliary Contact 1 piece
2CDS200946R0002
S2C-H6-20R S2C-H6-20R - Auxiliary Contact 1 piece
2CDS200946R0003

XT2N160 TMD1.6-16 FF 36 1.6 10137776 10137881
XT2N160 TMD2-20 FF 36 2 10137777 10137882
XT2N160 TMD2.5-25 FF 36 2.5 10137778 10137883
XT2N160 TMD3.2-32 FF 36 3.2 10137779 10137884


S2C-H6-02R S2C-H6-02R - Auxiliary Contact 1 piece
2CDS200970R0001
S2C-H01 S2C-H01 - Auxiliary Contact 1 piece
2CDS200970R0002
S2C-H10 S2C-H10 - Auxiliary Contact 1 piece
2CSS200911R0001

Installation method: fixed

Operation method: Ontology operation

Wiring method: Wiring in front of the board


S2C-UA 12 DC S2C-UA 12 DC - Undervoltage release 1 piece
2CSS200911R0002
S2C-UA 24 AC S2C-UA 24 AC - Undervoltage release 1 piece
2CSS200911R0003
S2C-UA 48 AC S2C-UA 48 AC - Undervoltage release 1 piece
2CSS200911R0004
S2C-UA 110 AC S2C-UA 110 AC - Undervoltage release 1 piece
2CSS200911R0005
S2C-UA 230 AC S2C-UA 230 AC - Undervoltage release 1 piece
2CSS200911R0006

abb circuit breakers distributors

XT2N160 TMD4-40 FF 36 4 10137780 10137885
XT2N160 TMD5-50 FF 36 5 10137781 10137886
XT2N160 TMD6.3-63 FF 36 6.3 10137782 10137887
XT2N160 TMD8-80 FF 36 8 10137783 10137888
XT2N160 TMD10-100 FF 36 10 10137784 10137889
XT2N160 TMD12.5-125 FF 36 12.5 10137785 10137890

2CDS273001R0164
S2C-UA 400 AC S2C-UA 400 AC - Undervoltage release 1 piece
2CSS200911R0007
S2C-UA 24 DC S2C-UA 24 DC - Undervoltage release 1 piece
2CSS200911R0008
S2C-UA 48 DC S2C-UA 48 DC - Undervoltage release 1 piece
2CSS200911R0009
S2C-UA 110 DC S2C-UA 110 DC - Undervoltage release 1 piece
2CSS200911R0010

S4N160 PR211-LI R100 FF S4N160 PR212-LSI R100 FF S4N160 PR212-LSIG R100 FF S4N160 PR211-LI R160 FF S4N160 PR212-LSI R160 FF S4N160 PR212-LSIG R160 FF S4N250 PR211-LI R250 FF S4N250 PR212-LSI R250 FF S4N250 PR212-LSIG R250 FF S4N160 PR211-LI R100 FFC S4N160 PR212-LSI R100 FFC S4N160 PR212-LSIG R100 FFC


S2C-UA 230 DC - Undervoltage release S2C-UA 230 DC 1 piece
2CSS200998R0001
S2C-BP - Mechanical tripping device S2C-BP 1 piece
2CSS200999R0001
S2C-EST - Plug-in base S2C-EST 1 piece
2CSS201997R0013

S2N160 R12.5 TM 10Ith FFC 4P+RC212/2V
S2N160 R16 TM 10Ith FFC 4P+RC212/2V
S2N160 R20 TM 10Ith FFC 4P+RC212/2V
S2N160 R25 TM 10Ith FFC 4P+RC212/2V
S2N160 R32 TM 10Ith FFC 4P+RC212/2V
S2N160 R40 TM 10Ith FFC 4P+RC212/2V
S2N160 R50 TM 10Ith FFC 4P+RC212/2V
S2N160 R63 TM 10Ith FFC 4P+RC212/2V
S2N160 R80 TM 10Ith FFC 4P+RC212/2V
S2N160 R100 TM 10Ith FFC 4P+RC212/2V
S2N160 R125 TM 10Ith FFC 4P+RC212/2V
S2N160 R160 TM 10Ith FFC 4P+RC212/2V

S3N160 R32 TM 10Ith FF 4P+RC212/3V
S3N160 R40 TM 10Ith FF 4P+RC212/3V
S3N160 R50 TM 10Ith FF 4P+RC212/3V
S3N160 R63 TM 10Ith FF 4P+RC212/3V
S3N160 R80 TM 10Ith FF 4P+RC212/3V
S3N160 R100 TM 10Ith FF 4P+RC212/3V
S3N160 R125 TM 10Ith FF 4P+RC212/3V
S3N160 R160 TM 10Ith FF 4P+RC212/3V
S3N250 R200 TM 10Ith FF 4P+RC212/3V
S3N250 R250 TM 10Ith FF 4P+RC212/3V

S2N160 R12.5 TM 10Ith FFC 4P+RC212/2H
S2N160 R16 TM 10Ith FFC 4P+RC212/2H
S2N160 R20 TM 10Ith FFC 4P+RC212/2H
S2N160 R25 TM 10Ith FFC 4P+RC212/2H
S2N160 R32 TM 10Ith FFC 4P+RC212/2H
S2N160 R40 TM 10Ith FFC 4P+RC212/2H
S2N160 R50 TM 10Ith FFC 4P+RC212/2H
S2N160 R63 TM 10Ith FFC 4P+RC212/2H
S2N160 R80 TM 10Ith FFC 4P+RC212/2H
S2N160 R100 TM 10Ith FFC 4P+RC212/2H
S2N160 R125 TM 10Ith FFC 4P+RC212/2H
S2N160 R160 TM 10Ith FFC 4P+RC212/2H

S3N160 R32 TM 10Ith FF 4P+RC212/3H
S3N160 R40 TM 10Ith FF 4P+RC212/3H
S3N160 R50 TM 10Ith FF 4P+RC212/3H
S3N160 R63 TM 10Ith FF 4P+RC212/3H
S3N160 R80 TM 10Ith FF 4P+RC212/3H
S3N160 R100 TM 10Ith FF 4P+RC212/3H
S3N160 R125 TM 10Ith FF 4P+RC212/3H
S3N160 R160 TM 10Ith FF 4P+RC212/3H
S3N250 R200 TM 10Ith FF 4P+RC212/3H
S3N250 R250 TM 10Ith FF 4P+RC212/3H

S2 / 3 + RC212-R vertical installation integrated residual current circuit breaker (with S2 / S3 series circuit breaker)
Breaking capacity: 35kA
Trip unit: Thermal magnetic trip TM
Electromagnetic trip watch (Im): 10Ith
Wiring form: FF (front wiring), FFC (front cable wiring)
model

S2N160 R12.5 TM 10Ith FFC 4P + RC212-R / 2V
S2N160 R16 TM 10Ith FFC 4P + RC212-R / 2V
S2N160 R20 TM 10Ith FFC 4P + RC212-R / 2V
S2N160 R25 TM 10Ith FFC 4P + RC212-R / 2V
S2N160 R32 TM 10Ith FFC 4P + RC212-R / 2V
S2N160 R40 TM 10Ith FFC 4P + RC212-R / 2V
S2N160 R50 TM 10Ith FFC 4P + RC212-R / 2V
S2N160 R63 TM 10Ith FFC 4P + RC212-R / 2V
S2N160 R80 TM 10Ith FFC 4P + RC212-R / 2V
S2N160 R100 TM 10Ith FFC 4P + RC212-R / 2V
S2N160 R125 TM 10Ith FFC 4P + RC212-R / 2V
S2N160 R160 TM 10Ith FFC 4P + RC212-R / 2V

S3N160 R32 TM 10Ith FF 4P + RC212-R / 3V
S3N160 R40 TM 10Ith FF 4P + RC212-R / 3V
S3N160 R50 TM 10Ith FF 4P + RC212-R / 3V
S3N160 R63 TM 10Ith FF 4P + RC212-R / 3V
S3N160 R80 TM 10Ith FF 4P + RC212-R / 3V
S3N160 R100 TM 10Ith FF 4P + RC212-R / 3V
S3N160 R125 TM 10Ith FF 4P + RC212-R / 3V
S3N160 R160 TM 10Ith FF 4P + RC212-R / 3V
S3N250 R200 TM 10Ith FF 4P + RC212-R / 3V
S3N250 R250 TM 10Ith FF 4P + RC212-R / 3V

Note: RC212-R only reports * No trip, only for fire protection


S2 / 3 + RC212-R horizontal installation integrated residual current circuit breaker (with S2 / S3 series circuit breaker)
Breaking capacity: 35kA
Trip unit: Thermal magnetic trip TM
Electromagnetic trip watch (Im): 10Ith
Wiring form: FF (front wiring), FFC (front cable wiring)
model

S2N160 R12.5 TM 10Ith FFC 4P + RC212-R / 2H
S2N160 R16 TM 10Ith FFC 4P + RC212-R / 2H
S2N160 R20 TM 10Ith FFC 4P + RC212-R / 2H
S2N160 R25 TM 10Ith FFC 4P + RC212-R / 2H
S2N160 R32 TM 10Ith FFC 4P + RC212-R / 2H
S2N160 R40 TM 10Ith FFC 4P + RC212-R / 2H
S2N160 R50 TM 10Ith FFC 4P + RC212-R / 2H
S2N160 R63 TM 10Ith FFC 4P + RC212-R / 2H
S2N160 R80 TM 10Ith FFC 4P + RC212-R / 2H
S2N160 R100 TM 10Ith FFC 4P + RC212-R / 2H
S2N160 R125 TM 10Ith FFC 4P + RC212-R / 2H
S2N160 R160 TM 10Ith FFC 4P + RC212-R / 2H

S3N160 R32 TM 10Ith FF 4P + RC212-R / 3H
S3N160 R40 TM 10Ith FF 4P + RC212-R / 3H
S3N160 R50 TM 10Ith FF 4P + RC212-R / 3H
S3N160 R63 TM 10Ith FF 4P + RC212-R / 3H
S3N160 R80 TM 10Ith FF 4P + RC212-R / 3H
S3N160 R100 TM 10Ith FF 4P + RC212-R / 3H
S3N160 R125 TM 10Ith FF 4P + RC212-R / 3H
S3N160 R160 TM 10Ith FF 4P + RC212-R / 3H
S3N250 R200 TM 10Ith FF 4P + RC212-R / 3H
S3N250 R250 TM 10Ith FF 4P + RC212-R / 3H

Note: RC212-R only reports * No trip, only for fire protection

abb circuit breakers distributors
S5 + RCQ (CL110mm) residual current relay integrated circuit breaker (with S5 series circuit breaker)
Breaking capacity: 35kA
Trip unit: Thermal magnetic trip (TM), microprocessor overcurrent release (PR211-LI, PR212-LSI)
Wiring form: FF (front wiring)
model

S5N400 R320 TM FF 4P + RCQ (CL110mm)
S5N400 R400 TM FF 4P + RCQ (CL110mm)
S5N630 R500 TM FF 4P + RCQ (CL110mm)

S5N400 PR211-LI R320 FF 4P + RCQ (CL110mm)
S5N400 PR211-LI R400 FF 4P + RCQ (CL110mm)
S5N630 PR211-LI R630 FF 4P + RCQ (CL110mm)
S5N400 PR212-LSI R320 FF 4P + RCQ (CL110mm)
S5N400 PR212-LSI R400 FF 4P + RCQ (CL110mm)
S5N630 PR212-LSI R630 FF 4P + RCQ (CL110mm)

 

S5 + RCQ (CL185mm) residual current relay integrated circuit breaker (with S5 series circuit breaker)
Breaking capacity: 35kA
Trip unit: TM-thermal magnetic trip, electronic trip unit (PR211-LI, PR212-LSI)
Wiring form: FF (front wiring)
model

S5N400 R320 TM FF 4P + RCQ (CL185mm)
S5N400 R400 TM FF 4P + RCQ (CL185mm)
S5N630 R500 TM FF 4P + RCQ (CL185mm)

S5N400 PR211-LI R320 FF 4P + RCQ (CL185mm)
S5N400 PR211-LI R400 FF 4P + RCQ (CL185mm)
S5N630 PR211-LI R630 FF 4P + RCQ (CL185mm)
S5N400 PR212-LSI R320 FF 4P + RCQ (CL185mm)
S5N400 PR212-LSI R400 FF 4P + RCQ (CL185mm)
S5N630 PR212-LSI R630 FF 4P + RCQ (CL185mm)


S2C-CM1 - Motor operating device S2C-CM1 1 piece
2CSS203997R0013
S2C-CM2/3 S2C-CM2/3 - Motor operating device 1 piece
2CSS204997R0013
S2C-CM4 - Motor operating device S2C-CM4 1 piece
GHS2001901R0003
S2C-DH S2C-DH - Mechanical Accessories 1 piece

1
CIRCUIT BREAKER:MCCB;T2H160MA20;ABB1.0each
===CIRCUIT BREAKER=== TYPE OR USAGE : MCCB MODEL : SACE-TMAX SPECIAL FEATURES : MOULDED CASE
SERIAL NUMBER : T2H160MA20 MANUFACTURER : ABB
2
CIRCUIT BREAKER:MCCB;T2H160MA32;ABB1.0each
===CIRCUIT BREAKER=== TYPE OR USAGE : MCCB MODEL : SACE-TMAX SPECIAL FEATURES : MOULDED CASE
SERIAL NUMBER : T2H160MA32 MANUFACTURER : ABB
3
CIRCUIT BREAKER:MCCB;T2H160MA52;ABB1.0each
===CIRCUIT BREAKER=== TYPE OR USAGE : MCCB MODEL : SACE-TMAX SPECIAL FEATURES : MOULDED CASE
SERIAL NUMBER : T2H160MA52 MANUFACTURER : ABB
4
CIRCUIT BREAKER:MCCB;T2H160MA80;ABB1.0each5CIRCUIT BREAKER:MCCB;T2H160MF12.5;ABB1.0each
===CIRCUIT BREAKER=== TYPE OR USAGE : MCCB MODEL : SACE-TMAX SPECIAL FEATURES : MOULDED CASE
SERIAL NUMBER : T2H160MF12.5 MANUFACTURER : ABB
6
CIRCUIT BREAKER:MCCB;T2H160MF6.5;ABB1.0each
===CIRCUIT BREAKER=== TYPE OR USAGE : MCCB MODEL : SACE-TMAX SPECIAL FEATURES : MOULDED CASE
SERIAL NUMBER : T2H160MF6.5 MANUFACTURER : ABB
7
CIRCUIT BREAKER:MCCB;T2H160TMD25;ABB1.0each
===CIRCUIT BREAKER=== TYPE OR USAGE : MCCB MODEL : SACE-TMAX SPECIAL FEATURES : MOULDED CASE
SERIAL NUMBER : T2H160TMD25 MANUFACTURER : ABB
8
CIRCUIT BREAKER:MCCB;T2H160TMD40;ABB1.0each
===CIRCUIT BREAKER=== TYPE OR USAGE : MCCB MODEL : SACE-TMAX SPECIAL FEATURES : MOULDED CASE
SERIAL NUMBER : T2H160TMD40 MANUFACTURER : ABB
9
CIRCUIT BREAKER:MCCB;T2S160MA20;ABB1.0each
===CIRCUIT BREAKER=== TYPE OR USAGE : MCCB MODEL : SACE-TMAX SPECIAL FEATURES : MOULDED CASE
SERIAL NUMBER : T2H160TMD40 MANUFACTURER : ABB===CIRCUIT BREAKER=== TYPE OR USAGE : MCCB
MODEL : SACE-TMAX SPECIAL FEATURES : MOULDED CASE SERIAL NUMBER : T2S160MA20 MANUFACTURER :ABB
10
CIRCUIT BREAKER:MCCB;T2S160MA32;ABB1.0each
===CIRCUIT BREAKER=== TYPE OR USAGE : MCCB MODEL : SACE-TMAX SPECIAL FEATURES : MOULDED CASE
SERIAL NUMBER : T2S160MA32 MANUFACTURER : ABB
11
CIRCUIT BREAKER:MCCB;T2S160MA52;ABB1.0each
===CIRCUIT BREAKER=== TYPE OR USAGE : MCCB MODEL : SACE-TMAX SPECIAL FEATURES : MOULDED CASE
SERIAL NUMBER : T2S160MA52 MANUFACTURER : ABB
12
CIRCUIT BREAKER:MCCB;T2S160MA80;ABB1.0each
===CIRCUIT BREAKER=== TYPE OR USAGE : MCCB MODEL : SACE-TMAX SPECIAL FEATURES : MOULDED CASE
SERIAL NUMBER : T2S160MA80 MANUFACTURER : ABB
13
CIRCUIT BREAKER:MCCB;T2S160MF12.5;ABB1.0each
===CIRCUIT BREAKER=== TYPE OR USAGE : MCCB MODEL : SACE-TMAX SPECIAL FEATURES : MOULDED CASE
SERIAL NUMBER : T2S160MF12.5 MANUFACTURER : ABB
14
CIRCUIT BREAKER:MCCB;T2S160MF6.5;ABB1.0each
===CIRCUIT BREAKER=== TYPE OR USAGE : MCCB MODEL : SACE-TMAX SPECIAL FEATURES : MOULDED CASE
SERIAL NUMBER : T2S160MF6.5 MANUFACTURER : ABB
15
CIRCUIT BREAKER:MCCB;T2S160TMD10;ABB1.0each
===CIRCUIT BREAKER=== TYPE OR USAGE : MCCB MODEL : SACE-TMAX SPECIAL FEATURES : MOULDED CASE
SERIAL NUMBER : T2S160TMD10 MANUFACTURER : ABB
16
CIRCUIT BREAKER:MCCB;T2S160TMD100;ABB1.0each
17
CIRCUIT BREAKER:MCCB;T2S160TMD125;ABB1.0each
18
CIRCUIT BREAKER:MCCB;T2S160TMD16;ABB1.0each
===CIRCUIT BREAKER=== TYPE OR USAGE : MCCB MODEL : SACE-TMAX SPECIAL FEATURES : MOULDED CASE
SERIAL NUMBER : T2S160TMD16 MANUFACTURER : ABB
19
CIRCUIT BREAKER:MCCB;T2S160TMD25;ABB1.0each
===CIRCUIT BREAKER=== TYPE OR USAGE : MCCB MODEL : SACE-TMAX SPECIAL FEATURES : MOULDED CASESERIAL NUMBER : T2S160TMD25 MANUFACTURER : ABB
20
CIRCUIT BREAKER:MCCB;T2S160TMD50;ABB1.0each
===CIRCUIT BREAKER=== TYPE OR USAGE : MCCB MODEL : SACE-TMAX SPECIAL FEATURES : MOULDED CASE
SERIAL NUMBER : T2S160TMD50 MANUFACTURER : ABB
21 
CIRCUIT BREAKER:MCCB;T2S160TMD80;ABB1.0each
===CIRCUIT BREAKER=== TYPE OR USAGE : MCCB MODEL : SACE-TMAX SPECIAL FEATURES : MOULDED CASE
SERIAL NUMBER : T2S160TMD80 MANUFACTURER : ABB
22
CIRCUIT BREAKER:MCCB;T4H250R250;ABB1.0each
===CIRCUIT BREAKER=== TYPE OR USAGE : MCCB MODEL : SACE-TMAX SPECIAL FEATURES : MOULDED CASE
SERIAL NUMBER : T4H250R250 MANUFACTURER : ABB
23
CIRCUIT BREAKER:MCCB;T4L250MA160;ABB1.0each
===CIRCUIT BREAKER=== TYPE OR USAGE : MCCB MODEL : SACE-TMAX SPECIAL FEATURES : MOULDED CASE
SERIAL NUMBER : T4L250MA160 MANUFACTURER : ABB
24
CIRCUIT BREAKER:MCCB;T4L250MA200;ABB1.0each
===CIRCUIT BREAKER=== TYPE OR USAGE : MCCB MODEL : SACE-TMAX SPECIAL FEATURES : MOULDED CASE
SERIAL NUMBER : T4L250MA200 MANUFACTURER : ABB
25
CIRCUIT BREAKER:MCCB;T4S250MA200;ABB1.0each
===CIRCUIT BREAKER=== TYPE OR USAGE : MCCB MODEL : SACE-TMAX SPECIAL FEATURES : MOULDED CASE
SERIAL NUMBER : T4S250MA200 MANUFACTURER : ABB
26
CIRCUIT BREAKER:MCCB;T4S250R250;ABB1.0each
===CIRCUIT BREAKER=== TYPE OR USAGE : MCCB MOD

SERIAL NUMBER : T4S250R250 MANUFACTURER : ABB
THERMAL MAGNETIC - 4 PC
NUMBER OF POLE 3
NUMBER OF PHASE 3
VOLTAGE RATING 480 V
CURRENT RATING 100 A
FREQUENCY RATING 50/60 HZ
BREAKING CAPACITY 50 KA AT 415 V
FRAME TYPE T2-100A
Additional data
CIRCUIT BREAKER WITH ROTARY SWITCH
3 POLE ,UNIT TYPE T2S 100,480V,50/60HZ, 40 DEG.C
ABB PRODUCT TYPE:#T2S 100/100 PR221DS
MFR: ABB Automation Inc.
#T2S100/100PR221DS
#TMAX-T2S 100
Certificate requirement
CERTIFICATE OF CONFORMANCE

Structural characteristics of ABB plastic case circuit breaker Tmax XT series:

◆ Double insulation;

◆ Reliable operation;

◆ Isolation performance;

◆ Electromagnetic compatibility;

◆ Temperature and humidity environment conditions;

◆ Anti-impact and vibration;

◆ Upward line or lower line;

◆ Flexible installation position of ABB plastic case circuit breakers, which can be horizontal, vertical or flat, without derating;

◆ ABB moulded case circuit breaker does not need to be derated when it is installed and used below two kilometers above sea level. If it is more than two kilometers, the change of atmospheric conditions will have certain impact on the equipment parameters, so it is necessary to use the derating method. use.

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