Miniature Circuit Breakers

Capital Electric Supply offers the best miniature circuit breakers that contractors trust, so they can do what they do best without worrying about the basics. With A-B circuit breakers of just 1/2″ width and under 4″ length, these miniature circuit breakers are perfect for working in tight spaces and small enclosures, or 12-24A applications. Whereas fuses need to be thrown out after an overload, MCBs provide long-term circuit protection and noticeably reduce installation time. These are designed and tested to meet ANSI standards, are CSA-certified and come under warranty.

43 Products found of 4
Product image for Square D QO240 40A 120/240v 2Pole Miniature Circuit Breaker, Plug-In
Square D QO240 40A 120/240v 2Pole Miniature Circuit Breaker, Plug-In
Manufacturer: Square-D / Schneider
Catalog #: QO240
Capital Electric Part #: 7055
$27.44/ea
Product image for Square D QO235 Miniature Circuit Breaker 35A 120/240V 2P 1Ph , Plug-On
Square D QO235 Miniature Circuit Breaker 35A 120/240V 2P 1Ph , Plug-On
Manufacturer: Square-D / Schneider
Catalog #: QO235
Capital Electric Part #: 27394
$27.39/ea
Product image for Square D QO215 Miniature Circuit Breaker 15A 120/240V 2P 1Ph , Plug-On
Square D QO215 Miniature Circuit Breaker 15A 120/240V 2P 1Ph , Plug-On
Manufacturer: Square-D / Schneider
Catalog #: QO215
Capital Electric Part #: 23026
$27.44/ea
Product image for Square D QO245 Miniautre Circuit Breaker 45A 120/240V 2P 1Ph , Plug-On
Square D QO245 Miniautre Circuit Breaker 45A 120/240V 2P 1Ph , Plug-On
Manufacturer: Square-D / Schneider
Catalog #: QO245
Capital Electric Part #: 19717
$27.39/ea
Product image for Square D QOB240 Miniature Circuit Breaker 40A 120/240V 1Ph 2P , Bolt-On
Square D QOB240 Miniature Circuit Breaker 40A 120/240V 1Ph 2P , Bolt-On
Manufacturer: Square-D / Schneider
Catalog #: QOB240
Capital Electric Part #: 26718
$81.61/ea
ea
Product image for Square D QO350 Miniature Circuit Breaker 50A 240V 3Ph , Plug-On
Square D QO350 Miniature Circuit Breaker 50A 240V 3Ph , Plug-On
Manufacturer: Square-D / Schneider
Catalog #: QO350
Capital Electric Part #: 30162
$146.66/ea
ea
Product image for Square D QOB250 Miniature Circuit Breaker 50A 120/240V 1Ph 2P , Bolt-On
Square D QOB250 Miniature Circuit Breaker 50A 120/240V 1Ph 2P , Bolt-On
Manufacturer: Square-D / Schneider
Catalog #: QOB250
Capital Electric Part #: 3532
$81.61/ea
ea
Product image for Square D QO345 Miniature Circuit Breaker 45A 240V 3Ph , Plug-On
Square D QO345 Miniature Circuit Breaker 45A 240V 3Ph , Plug-On
Manufacturer: Square-D / Schneider
Catalog #: QO345
Capital Electric Part #: 79929
$146.66/ea
ea
Product image for Square D QOB350 Miniature Circuit Breaker 50A 240V 3Ph , Bolt-On
Square D QOB350 Miniature Circuit Breaker 50A 240V 3Ph , Bolt-On
Manufacturer: Square-D / Schneider
Catalog #: QOB350
Capital Electric Part #: 2291
$282.12/ea
ea
Product image for Square D QO150 Miniature Circuit Breaker 50A 120/240V 1Ph 1P , Plug-On
Square D QO150 Miniature Circuit Breaker 50A 120/240V 1Ph 1P , Plug-On
Manufacturer: Square-D / Schneider
Catalog #: QO150
Capital Electric Part #: 63097
$16.54/ea
ea
Product image for Square D QO360 Miniature Circuit Breaker 60A 240V 3Ph , Plug-On
Square D QO360 Miniature Circuit Breaker 60A 240V 3Ph , Plug-On
Manufacturer: Square-D / Schneider
Catalog #: QO360
Capital Electric Part #: 31930
$146.66/ea
ea
Product image for Square D QO370 Miniature Circuit Breaker 70A 240V 3Ph , Plug-On
Square D QO370 Miniature Circuit Breaker 70A 240V 3Ph , Plug-On
Manufacturer: Square-D / Schneider
Catalog #: QO370
Capital Electric Part #: 70771
$201.17/ea
ea
43 Products found of 4


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