Circuit Breakers - ABB

Circuit breakers protect circuits from overloads and short circuits, and you can reset them after a trip. They're the main overcurrent protection in control panels, switchboards and distribution equipment.

Breaker Types

  • Miniature circuit breakers (MCBs) – DIN rail control circuit protection
  • Molded case circuit breakers (MCCBs) – higher currents
  • Supplementary protectors – equipment protection
  • Motor circuit protectors – motor branch circuits
  • Ground-fault breakers – personnel protection

Choosing a Breaker

Select current rating, voltage, poles, trip curve and interrupting rating. Confirm UL listing for your application, whether branch circuit (UL 489) or supplementary (UL 1077).

Centro carries circuit breakers and accessories.

Related categories: Circuit Protection | Fuses | Breaker Conversion Kits | Fuse Blocks and Holders | Disconnect Accessories

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E4.2V 4000 EKIP DIP LSI 3P WMP

$106,889.72$140,477.33

You save 24%
Should ship between 14 Nov and 21 Nov

Subject to factory lead times

E4.2V 4000 EKIP DIP LSIG 3P WMP

$108,269.11$142,290.16

You save 24%
Should ship between 14 Nov and 21 Nov

Subject to factory lead times

E4.2V 4000 EKIP TOUCH LI 3P WMP

$107,180.48$140,859.45

You save 24%
Should ship between 14 Nov and 21 Nov

Subject to factory lead times

E4.2V 4000 EKIP TOUCH LSI 3P WMP

$104,316.70$142,808.11

You save 27%
Should ship between 14 Nov and 21 Nov

Subject to factory lead times

E4.2V 4000 EKIP TOUCH LSIG 3P WMP

$110,664.45$145,438.18

You save 24%
Should ship between 14 Nov and 21 Nov

Subject to factory lead times

E4.2V 4000 EKIP HI-TOUCH LSI 3P WMP

$112,263.68$147,539.92

You save 24%
Should ship between 14 Nov and 21 Nov

Subject to factory lead times

E4.2V 4000 EKIP HI-TOUCH LSIG 3P WMP

$115,526.06$151,827.43

You save 24%
Should ship between 14 Nov and 21 Nov

Subject to factory lead times

E4.2V 4000 EKIP G TOUCH LSIG 3P WMP

$116,069.94$152,542.21

You save 24%
Should ship between 14 Nov and 21 Nov

Subject to factory lead times

E4.2V 4000 EKIP G HI-TOUCH LSIG 3P WMP

$118,670.20$155,959.55

You save 24%
Should ship between 14 Nov and 21 Nov

Subject to factory lead times

E4.2V 4000 EKIP DIP LI 3P FHR

$92,057.03$120,983.81

You save 24%
Should ship between 14 Nov and 21 Nov

Subject to factory lead times

E4.2V 4000 EKIP DIP LSI 3P FHR

$93,079.98$122,328.20

You save 24%
Should ship between 14 Nov and 21 Nov

Subject to factory lead times

E4.2V 4000 EKIP DIP LSIG 3P FHR

$94,461.12$124,143.33

You save 24%
Should ship between 14 Nov and 21 Nov

Subject to factory lead times

E4.2V 4000 EKIP TOUCH LI 3P FHR

$93,372.49$122,712.63

You save 24%
Should ship between 14 Nov and 21 Nov

Subject to factory lead times

E4.2V 4000 EKIP TOUCH LSI 3P FHR

$94,855.24$124,661.29

You save 24%
Should ship between 14 Nov and 21 Nov

Subject to factory lead times

E4.2V 4000 EKIP TOUCH LSIG 3P FHR

$96,857.33$127,292.49

You save 24%
Should ship between 14 Nov and 21 Nov

Subject to factory lead times

E4.2V 4000 EKIP HI-TOUCH LSI 3P FHR

$98,454.81$129,391.94

You save 24%
Should ship between 14 Nov and 21 Nov

Subject to factory lead times

E4.2V 4000 EKIP HI-TOUCH LSIG 3P FHR

$101,716.32$133,678.31

You save 24%
Should ship between 14 Nov and 21 Nov

Subject to factory lead times

E4.2V 4000 EKIP G TOUCH LSIG 3P FHR

$102,261.06$134,394.23

You save 24%
Should ship between 14 Nov and 21 Nov

Subject to factory lead times

E4.2V 4000 EKIP G HI-TOUCH LSIG 3P FHR

$104,862.21$137,812.73

You save 24%
Should ship between 14 Nov and 21 Nov

Subject to factory lead times

E4.2V-A 3600 EKIP DIP LI 3P FVR

$69,335.95$91,123.16

You save 24%
Should ship between 14 Nov and 21 Nov

Subject to factory lead times

E4.2V-A 3600 EKIP DIP LSI 3P FVR

$70,524.43$92,685.08

You save 24%
Should ship between 14 Nov and 21 Nov

Subject to factory lead times

E4.2V-A 3600 EKIP DIP LSIG 3P FVR

$72,129.79$94,794.88

You save 24%
Should ship between 14 Nov and 21 Nov

Subject to factory lead times

E4.2V-A 3600 EKIP TOUCH LI 3P FVR

$70,864.25$93,131.68

You save 24%
Should ship between 14 Nov and 21 Nov

Subject to factory lead times

E4.2V-A 3600 EKIP TOUCH LSI 3P FVR

$72,588.71$95,398.01

You save 24%
Should ship between 14 Nov and 21 Nov

Subject to factory lead times

E4.2V 4000 EKIP DIP LSI 3P WMP

$106,889.72$140,477.33

You save 24%
Should ship between 14 Nov and 21 Nov

Subject to factory lead times

E4.2V 4000 EKIP DIP LSIG 3P WMP

$108,269.11$142,290.16

You save 24%
Should ship between 14 Nov and 21 Nov

Subject to factory lead times

E4.2V 4000 EKIP TOUCH LI 3P WMP

$107,180.48$140,859.45

You save 24%
Should ship between 14 Nov and 21 Nov

Subject to factory lead times

E4.2V 4000 EKIP TOUCH LSI 3P WMP

$104,316.70$142,808.11

You save 27%
Should ship between 14 Nov and 21 Nov

Subject to factory lead times

E4.2V 4000 EKIP TOUCH LSIG 3P WMP

$110,664.45$145,438.18

You save 24%
Should ship between 14 Nov and 21 Nov

Subject to factory lead times

E4.2V 4000 EKIP HI-TOUCH LSI 3P WMP

$112,263.68$147,539.92

You save 24%
Should ship between 14 Nov and 21 Nov

Subject to factory lead times

E4.2V 4000 EKIP HI-TOUCH LSIG 3P WMP

$115,526.06$151,827.43

You save 24%
Should ship between 14 Nov and 21 Nov

Subject to factory lead times

E4.2V 4000 EKIP G TOUCH LSIG 3P WMP

$116,069.94$152,542.21

You save 24%
Should ship between 14 Nov and 21 Nov

Subject to factory lead times

E4.2V 4000 EKIP G HI-TOUCH LSIG 3P WMP

$118,670.20$155,959.55

You save 24%
Should ship between 14 Nov and 21 Nov

Subject to factory lead times

E4.2V 4000 EKIP DIP LI 3P FHR

$92,057.03$120,983.81

You save 24%
Should ship between 14 Nov and 21 Nov

Subject to factory lead times

E4.2V 4000 EKIP DIP LSI 3P FHR

$93,079.98$122,328.20

You save 24%
Should ship between 14 Nov and 21 Nov

Subject to factory lead times

E4.2V 4000 EKIP DIP LSIG 3P FHR

$94,461.12$124,143.33

You save 24%
Should ship between 14 Nov and 21 Nov

Subject to factory lead times

E4.2V 4000 EKIP TOUCH LI 3P FHR

$93,372.49$122,712.63

You save 24%
Should ship between 14 Nov and 21 Nov

Subject to factory lead times

E4.2V 4000 EKIP TOUCH LSI 3P FHR

$94,855.24$124,661.29

You save 24%
Should ship between 14 Nov and 21 Nov

Subject to factory lead times

E4.2V 4000 EKIP TOUCH LSIG 3P FHR

$96,857.33$127,292.49

You save 24%
Should ship between 14 Nov and 21 Nov

Subject to factory lead times

E4.2V 4000 EKIP HI-TOUCH LSI 3P FHR

$98,454.81$129,391.94

You save 24%
Should ship between 14 Nov and 21 Nov

Subject to factory lead times

E4.2V 4000 EKIP HI-TOUCH LSIG 3P FHR

$101,716.32$133,678.31

You save 24%
Should ship between 14 Nov and 21 Nov

Subject to factory lead times

E4.2V 4000 EKIP G TOUCH LSIG 3P FHR

$102,261.06$134,394.23

You save 24%
Should ship between 14 Nov and 21 Nov

Subject to factory lead times

E4.2V 4000 EKIP G HI-TOUCH LSIG 3P FHR

$104,862.21$137,812.73

You save 24%
Should ship between 14 Nov and 21 Nov

Subject to factory lead times

E4.2V-A 3600 EKIP DIP LI 3P FVR

$69,335.95$91,123.16

You save 24%
Should ship between 14 Nov and 21 Nov

Subject to factory lead times

E4.2V-A 3600 EKIP DIP LSI 3P FVR

$70,524.43$92,685.08

You save 24%
Should ship between 14 Nov and 21 Nov

Subject to factory lead times

E4.2V-A 3600 EKIP DIP LSIG 3P FVR

$72,129.79$94,794.88

You save 24%
Should ship between 14 Nov and 21 Nov

Subject to factory lead times

E4.2V-A 3600 EKIP TOUCH LI 3P FVR

$70,864.25$93,131.68

You save 24%
Should ship between 14 Nov and 21 Nov

Subject to factory lead times

E4.2V-A 3600 EKIP TOUCH LSI 3P FVR

$72,588.71$95,398.01

You save 24%
Should ship between 14 Nov and 21 Nov

Subject to factory lead times