Air Circuit Breakers (ACB)

722 parts 1 sub-family 3 series

Air circuit breakers (ACB) from ABB, Siemens and Schneider Electric protect main incomers and bus ties from 630 A up to 6300 A. The range covers 3-pole and 4-pole fixed and draw-out breakers with electronic trip units, plus accessories and releases, with more than 750 products. Stoklink ships worldwide from Turkey and quotes project volumes on request.

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Sub-families

One sub-family of Air Circuit Breakers (ACB)

Counts are parts listed at Stoklink

285 parts
ACB Accessories & Releases
ACB accessories and releases from ABB, Siemens and Schneider Electric complete air circuit breakers with trip settings, signaling and mounting parts.

Series in this family Emax 2ABB 3WASiemens 3WT8Siemens

Sibling families Residual Current Devices (RCD) 310 Arc Fault Detection Devices (AFDD) 45 Surge Protective Devices (SPD) 106

722 parts

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Part number · catalog no Description Brand In (A)Ue (V AC) Stock DispatchPrice

3WA1108-3AB42-0AA0 3WA Siemens

Siemens · 3WA 4-Pole 800A 66kA 690V Draw-out Type Air Circuit Breaker ETU300 LSI Siemens

800 690

On request

—

$5,573.23

3WA1108-4AB02-0AA0 3WA Siemens

Siemens · 3WA 3-Pole 800A 85kA 690V Fixed Type Air Circuit Breaker ETU300 LSI Siemens

800 690

On request

—

$3,130.69

3WA1108-4AB12-0AA0 3WA Siemens

Siemens · 3WA 4-Pole 800A 85kA 690V Fixed Type Air Circuit Breaker ETU300 LSI Siemens

800 690

On request

—

$4,463.31

3WA1108-4AB32-0AA0 3WA Siemens

Siemens · 3WA 3-Pole 800A 85kA 690V Draw-out Type Air Circuit Breaker ETU300 LSI Siemens

800 690

On request

—

$4,604.68

3WA1110-2AB42-0AA0 3WA Siemens

Siemens · 3WA 4-Pole 1000A 55kA 690V Draw-out Type Air Circuit Breaker ETU300 LSI Siemens

1000 690

On request

—

$5,361.29

3WA1110-3AB02-0AA0 3WA Siemens

Siemens · 3WA 3-Pole 1000A 66kA 690V Fixed Type Air Circuit Breaker ETU300 LSI Siemens

1000 690

Low stock

9 Nov

$3,074.72

3WA1110-3AB32-0AA0 3WA Siemens

Siemens · 3WA 3-Pole 1000A 66kA 690V Draw-out Type Air Circuit Breaker ETU300 LSI Siemens

1000 690

On request

—

$3,883.75

3WA1110-3AB42-0AA0 3WA Siemens

Siemens · 3WA 4-Pole 1000A 66kA 690V Draw-out Type Air Circuit Breaker ETU300 LSI Siemens

1000 690

On request

—

$5,637.43

3WA1110-4AB02-0AA0 3WA Siemens

Siemens · 3WA 3-Pole 1000A 85kA 690V Fixed Type Air Circuit Breaker ETU300 LSI Siemens

1000 690

On request

—

$3,268.62

3WA1110-4AB12-0AA0 3WA Siemens

Siemens · 3WA 4-Pole 1000A 85kA 690V Fixed Type Air Circuit Breaker ETU300 LSI Siemens

1000 690

On request

—

$4,624.69

3WA1110-4AB32-0AA0 3WA Siemens

Siemens · 3WA 3-Pole 1000A 85kA 690V Draw-out Type Air Circuit Breaker ETU300 LSI Siemens

1000 690

On request

—

$4,755.84

3WA1110-8AB02-0AA0 3WA Siemens

Siemens · 3WA 3-Pole 1000A 85kA 690V Fixed Type Air Circuit Breaker ETU300 LSI Siemens

1000 690

On request

—

$3,854.37

3WA1112-2AB12-0AA0 3WA Siemens

Siemens · 3WA 4-Pole 1250A 55kA 690V Fixed Type Air Circuit Breaker ETU300 LSI Siemens

1250 690

On request

—

$4,950.23

3WA1112-2AB32-0AA0 3WA Siemens

Siemens · 3WA 3-Pole 1250A 55kA 690V Draw-out Type Air Circuit Breaker ETU300 LSI Siemens

1250 690

On request

—

$4,284.11

3WA1112-2AB42-0AA0 3WA Siemens

Siemens · 3WA 4-Pole 1250A 55kA 690V Draw-out Type Air Circuit Breaker ETU300 LSI Siemens

1250 690

On request

—

$6,124.36

3WA1112-3AB32-0AA0 3WA Siemens

Siemens · 3WA 3-Pole 1250A 66kA 690V Draw-out Type Air Circuit Breaker ETU300 LSI Siemens

1250 690

On request

—

$4,566.40

3WA1112-3AB42-0AA0 3WA Siemens

Siemens · 3WA 4-Pole 1250A 66kA 690V Draw-out Type Air Circuit Breaker ETU300 LSI Siemens

1250 690

On request

—

$6,436.15

3WA1112-4AB02-0AA0 3WA Siemens

Siemens · 3WA 3-Pole 1250A 85kA 690V Fixed Type Air Circuit Breaker ETU300 LSI Siemens

1250 690

On request

—

$3,904.46

3WA1112-4AB12-0AA0 3WA Siemens

Siemens · 3WA 4-Pole 1250A 85kA 690V Fixed Type Air Circuit Breaker ETU300 LSI Siemens

1250 690

On request

—

$5,405.91

3WA1112-4AB32-0AA0 3WA Siemens

Siemens · 3WA 3-Pole 1250A 85kA 690V Draw-out Type Air Circuit Breaker ETU300 LSI Siemens

1250 690

On request

—

$5,225.38

3WA1112-8AB02-0AA0 3WA Siemens

Siemens · 3WA 3-Pole 1250A 85kA 690V Fixed Type Air Circuit Breaker ETU300 LSI Siemens

1250 690

On request

—

$4,533.22

3WA1116-2AB32-0AA0 3WA Siemens

Siemens · 3WA 3-Pole 1600A 55kA 690V Draw-out Type Air Circuit Breaker ETU300 LSI Siemens

1600 690

On request

—

$5,888.59

3WA1116-2AB42-0AA0 3WA Siemens

Siemens · 3WA 4-Pole 1600A 55kA 690V Draw-out Type Air Circuit Breaker ETU300 LSI Siemens

1600 690

On request

—

$8,298.88

3WA1116-3AB02-0AA0 3WA Siemens

Siemens · 3WA 3-Pole 1600A 66kA 690V Fixed Type Air Circuit Breaker ETU300 LSI Siemens

1600 690

In stock

9 Nov

$4,063.38

3WA1116-3AB32-0AA0 3WA Siemens

Siemens · 3WA 3-Pole 1600A 66kA 690V Draw-out Type Air Circuit Breaker ETU300 LSI Siemens

1600 690

On request

—

$6,180.53

3WA1116-3AB42-0AA0 3WA Siemens

Siemens · 3WA 4-Pole 1600A 66kA 690V Draw-out Type Air Circuit Breaker ETU300 LSI Siemens

1600 690

On request

—

$8,710.25

3WA1116-4AB12-0AA0 3WA Siemens

Siemens · 3WA 4-Pole 1600A 85kA 690V Fixed Type Air Circuit Breaker ETU300 LSI Siemens

1600 690

On request

—

$7,286.10

3WA1116-4AB32-0AA0 3WA Siemens

Siemens · 3WA 3-Pole 1600A 85kA 690V Draw-out Type Air Circuit Breaker ETU300 LSI Siemens

1600 690

On request

—

$6,794.76

3WA1116-4AB42-0AA0 3WA Siemens

Siemens · 3WA 4-Pole 1600A 85kA 690V Draw-out Type Air Circuit Breaker ETU300 LSI Siemens

1600 690

On request

—

$9,523.54

3WA1116-8AB02-0AA0 3WA Siemens

Siemens · 3WA 3-Pole 1600A 85kA 690V Fixed Type Air Circuit Breaker ETU300 LSI Siemens

1600 690

On request

—

$6,091.80

3WA1120-2AB32-0AA0 3WA Siemens

Siemens · 3WA 3-Pole 2000A 55kA 690V Draw-out Type Air Circuit Breaker ETU300 LSI Siemens

2000 690

On request

—

$6,319.47

3WA1120-3AB02-0AA0 3WA Siemens

Siemens · 3WA 3-Pole 2000A 66kA 690V Fixed Type Air Circuit Breaker ETU300 LSI Siemens

2000 690

Low stock

9 Nov

$4,497.49

3WA1120-3AB32-0AA0 3WA Siemens

Siemens · 3WA 3-Pole 2000A 66kA 690V Draw-out Type Air Circuit Breaker ETU300 LSI Siemens

2000 690

On request

—

$6,666.57

3WA1120-4AB02-0AA0 3WA Siemens

Siemens · 3WA 3-Pole 2000A 85kA 690V Fixed Type Air Circuit Breaker ETU300 LSI Siemens

2000 690

Critical stock

9 Nov

$6,294.99

3WA1120-4AB32-0AA0 3WA Siemens

Siemens · 3WA 3-Pole 2000A 85kA 690V Draw-out Type Air Circuit Breaker ETU300 LSI Siemens

2000 690

On request

—

$7,341.46

3WA1120-4AB42-0AA0 3WA Siemens

Siemens · 3WA 4-Pole 2000A 85kA 690V Draw-out Type Air Circuit Breaker ETU300 LSI Siemens

2000 690

On request

—

$9,933.63

3WA1125-3AB12-0AA0 3WA Siemens

Siemens · 3WA 4-Pole 2500A 66kA 690V Fixed Type Air Circuit Breaker ETU300 LSI Siemens

2500 690

On request

—

$8,645.93

3WA1125-4AB02-0AA0 3WA Siemens

Siemens · 3WA 3-Pole 2500A 85kA 690V Fixed Type Air Circuit Breaker ETU300 LSI Siemens

2500 690

On request

—

$6,902.81

3WA1125-4AB12-0AA0 3WA Siemens

Siemens · 3WA 4-Pole 2500A 85kA 690V Fixed Type Air Circuit Breaker ETU300 LSI Siemens

2500 690

On request

—

$10,157.47

3WA1220-5AB02-0AA0 3WA Siemens

Siemens · 3WA 3-Pole 2000A 100kA 690V Fixed Type Air Circuit Breaker ETU300 LSI Siemens

2000 690

On request

—

$7,056.37

3WA1220-8AB02-0AA0 3WA Siemens

Siemens · 3WA 3-Pole 2000A 85kA 690V Fixed Type Air Circuit Breaker ETU300 LSI Siemens

2000 690

On request

—

$8,156.32

3WA1225-3AB02-0AA0 3WA Siemens

Siemens · 3WA 3-Pole 2500A 66kA 690V Fixed Type Air Circuit Breaker ETU300 LSI Siemens

2500 690

On request

—

$6,541.69

3WA1225-3AB32-0AA0 3WA Siemens

Siemens · 3WA 3-Pole 2500A 66kA 690V Draw-out Type Air Circuit Breaker ETU300 LSI Siemens

2500 690

On request

—

$8,177.74

3WA1225-4AB12-0AA0 3WA Siemens

Siemens · 3WA 4-Pole 2500A 85kA 690V Fixed Type Air Circuit Breaker ETU300 LSI Siemens

2500 690

On request

—

$9,248.91

3WA1225-4AB32-0AA0 3WA Siemens

Siemens · 3WA 3-Pole 2500A 85kA 690V Draw-out Type Air Circuit Breaker ETU300 LSI Siemens

2500 690

On request

—

$8,595.51

3WA1225-4AB42-0AA0 3WA Siemens

Siemens · 3WA 4-Pole 2500A 85kA 690V Draw-out Type Air Circuit Breaker ETU300 LSI Siemens

2500 690

On request

—

$11,875.79

3WA1225-5AB02-0AA0 3WA Siemens

Siemens · 3WA 3-Pole 2500A 100kA 690V Fixed Type Air Circuit Breaker ETU300 LSI Siemens

2500 690

On request

—

$8,444.96

3WA1225-5AB12-0AA0 3WA Siemens

Siemens · 3WA 4-Pole 2500A 100kA 690V Fixed Type Air Circuit Breaker ETU300 LSI Siemens

2500 690

On request

—

$10,264.60

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Guide

Air Circuit Breakers (ACB) buying guide

What's in this range

ABB SACE Emax 2 Air Circuit Breakers – E1.2 to E6.2 frames from 630 A to 6300 A.
Siemens SENTRON 3WA Air Circuit Breakers – fixed and draw-out breakers at 690 V.
Siemens SENTRON 3WT8 Air Circuit Breakers – 3-pole and 4-pole breakers at 500 V.
ACB Accessories & Releases – rating plugs, auxiliary contacts and partitions.

How to choose

Rated current of the frame, matched to the transformer or incomer load.
Breaking capacity (Icu) at the system voltage, above the prospective short-circuit current.
Fixed or draw-out version: draw-out allows maintenance without opening the busbar.
Trip unit: Ekip or ETU, with LI, LSI or LSIG protection functions for selectivity.
Poles: 3P or 4P according to the neutral arrangement. Standard: IEC 60947-2.

FAQ

Air Circuit Breakers (ACB) questions

When is an ACB needed instead of an MCCB?

Typically for main incomers and bus ties above 1000 A to 1600 A, and where selectivity and draw-out maintenance matter.

What does LSI mean on an ACB trip unit?

LSI stands for long-time, short-time and instantaneous protection, which allows time-based selectivity between breakers.

Do you ship air circuit breakers worldwide?

Stoklink ships worldwide from Turkey on EXW terms. Lead time depends on distributor stock, so request a quote with your part numbers and quantities.