Miniature circuit breakers

Miniature circuit breaker, UL489, 1 pole, Operating voltage: 277 V AC, Current rating: 3 A, SCCR: 10 kA, Trip curve: C
Item number: 403690
-40 % MSRP: $26.83
$16.10
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Miniature circuit breaker, UL1077, 3 poles, Operating voltage: 480Y/277 V AC, Current rating: 5 A, SCCR: 6 kA, Trip curve: C
Item number: 403862
-37 % MSRP: $33.88
$21.34
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Miniature circuit breaker, UL1077, 1 pole, Operating voltage: 277 V AC, Current rating: 3 A, SCCR: 6 kA, Trip curve: C
Item number: 403792
-37 % MSRP: $9.94
$6.26
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Miniature circuit breaker, UL1077, 1 pole, Operating voltage: 277 V AC, Current rating: 10 A, SCCR: 6 kA, Trip curve: B
Item number: 403780
-37 % MSRP: $9.94
$6.26
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Miniature circuit breaker, UL1077, 1 pole, Operating voltage: 277 V AC, Current rating: 5 A, SCCR: 6 kA, Trip curve: B
Item number: 403777
-37 % MSRP: $9.94
$6.26
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Miniature circuit breaker, UL489, 2 poles, Operating voltage: 480Y/277 V AC, Current rating: 8 A, SCCR: 10 kA, Trip curve: C
Item number: 403728
-40 % MSRP: $57.46
$34.48
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Miniature circuit breaker, UL489, 1 pole, Operating voltage: 120/240 V AC, Current rating: 30 A, SCCR: 10 kA, Trip curve: C
Item number: 403700
-40 % MSRP: $26.83
$16.10
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Miniature circuit breaker, UL489, 1 pole, Operating voltage: 277 V AC, Current rating: 15 A, SCCR: 10 kA, Trip curve: C
Item number: 403696
-40 % MSRP: $26.83
$16.10
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Miniature circuit breaker, UL489, 1 pole, Operating voltage: 277 V AC, Current rating: 6 A, SCCR: 10 kA, Trip curve: C
Item number: 403693
-40 % MSRP: $26.83
$16.10
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Miniature circuit breaker, UL489, 1 pole, Operating voltage: 277 V AC, Current rating: 5 A, SCCR: 10 kA, Trip curve: C
Item number: 403692
-40 % MSRP: $26.83
$16.10
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Miniature circuit breaker, UL489, 1 pole, Operating voltage: 277 V AC, Current rating: 5 A, SCCR: 10 kA, Trip curve: B
Item number: 403676
-40 % MSRP: $26.83
$16.10
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Miniature circuit breaker, UL489, 1 pole, Operating voltage: 277 V AC, Current rating: 20 A, SCCR: 10 kA, Trip curve: B
Item number: 403682
-40 % MSRP: $26.83
$16.10
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Miniature circuit breaker, UL489, 1 pole, Operating voltage: 277 V AC, Current rating: 1 A, SCCR: 10 kA, Trip curve: C
Item number: 403688
-40 % MSRP: $26.83
$16.10
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Miniature circuit breaker, UL489, 1 pole, Operating voltage: 277 V AC, Current rating: 8 A, SCCR: 10 kA, Trip curve: C
Item number: 403694
-40 % MSRP: $26.83
$16.10
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Miniature circuit breaker, UL489, 1 pole, Operating voltage: 277 V AC, Current rating: 10 A, SCCR: 10 kA, Trip curve: C
Item number: 403695
-40 % MSRP: $26.83
$16.10
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Miniature circuit breaker, UL1077, 1 pole, Operating voltage: 277 V AC, Current rating: 1 A, SCCR: 6 kA, Trip curve: B
Item number: 403773
-37 % MSRP: $9.94
$6.26
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Miniature circuit breaker, UL489, 2 poles, Operating voltage: 480Y/277 V AC, Current rating: 4 A, SCCR: 10 kA, Trip curve: C
Item number: 403725
-40 % MSRP: $57.46
$34.48
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Miniature circuit breaker, UL1077, 1 pole, Operating voltage: 277 V AC, Current rating: 6 A, SCCR: 6 kA, Trip curve: B
Item number: 403778
-37 % MSRP: $9.94
$6.26
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Miniature circuit breaker, UL1077, 1 pole, Operating voltage: 277 V AC, Current rating: 8 A, SCCR: 6 kA, Trip curve: B
Item number: 403779
-37 % MSRP: $9.94
$6.26
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Miniature circuit breaker, UL489, 1 pole, Operating voltage: 277 V AC, Current rating: 16 A, SCCR: 10 kA, Trip curve: C
Item number: 403697
-40 % MSRP: $26.83
$16.10
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Miniature circuit breaker, UL489, 1 pole, Operating voltage: 277 V AC, Current rating: 20 A, SCCR: 10 kA, Trip curve: C
Item number: 403698
-40 % MSRP: $26.83
$16.10
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Miniature circuit breaker, UL489, 1 pole, Operating voltage: 277 V AC, Current rating: 25 A, SCCR: 10 kA, Trip curve: C
Item number: 403699
-40 % MSRP: $26.83
$16.10
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Miniature circuit breaker, UL489, 1 pole, Operating voltage: 120/240 V AC, Current rating: 32 A, SCCR: 10 kA, Trip curve: C
Item number: 403701
-40 % MSRP: $26.83
$16.10
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Miniature circuit breaker, UL489, 1 pole, Operating voltage: 120/240 V AC, Current rating: 40 A, SCCR: 10 kA, Trip curve: C
Item number: 403702
-40 % MSRP: $26.83
$16.10
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Miniature circuit breaker, UL489, 1 pole, Operating voltage: 120/240 V AC, Current rating: 50 A, SCCR: 10 kA, Trip curve: C
Item number: 403703
-40 % MSRP: $29.98
$17.99
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Miniature circuit breakers

Miniature circuit breakers are one of the simplest and most reliable safeguards you can install to protect your machinery and electrical devices. By sensing temperature increases in the event of a short circuit or overload, the breaker will trip, immediately halting any current flow. Effectively preventing any damage to your devices. Once the issue causing the fault or overload has been corrected, the breaker can easily be reset by the switch on the front of the unit.

Circuit breakers can protect your motors from:

  • Circuit overload
  • Short circuit

 

Order miniature circuit breakers online from Automation24

At Automation24, we offer a wide variety of miniature circuit breakers at excellent prices available online from LS ELECTRIC. Select the right circuit breaker for your application today. We offer both UL489 circuit breakers for multi-device protection, or UL1077 MCBs for single device protection. Like UL489 breaker LS ELECTRIC BK63HU 1P B1A 10kA 277VAC UL489 – 0626042163 with 1 A current rating and B trip curve. For single device protection for higher current 3 pole applications you can try UL1077 LS ELECTRIC BK63H 3P B25A 6kA 480Y-277VAC UL1077 - 0628031463 with 25 A current rating.

At Automation24 you can find a large selection of miniature circuit breakers at excellent prices. Select the perfect breaker for your application now!