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.

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192 Products found of 16
Product image for Square D QO120GFI Miniature Circuit Breaker w/GFI 20A 120V 1Ph 1P, Plug-On
Square D QO120GFI Miniature Circuit Breaker w/GFI 20A 120V 1Ph 1P, Plug-On
Manufacturer: Square-D / Schneider
Catalog #: QO120GFI
Capital Electric Part #: 25735
$146.40/ea
ea
Product image for Square D QO230 Miniature Circuit Breaker 30A 120/240V 2P , Plug-In
Square D QO230 Miniature Circuit Breaker 30A 120/240V 2P , Plug-In
Manufacturer: Square-D / Schneider
Catalog #: QO230
Capital Electric Part #: 23870
$27.44/ea
Product image for Square D QO225 Miniature Circuit Breaker 25A 120/240V 2P , Plug-In
Square D QO225 Miniature Circuit Breaker 25A 120/240V 2P , Plug-In
Manufacturer: Square-D / Schneider
Catalog #: QO225
Capital Electric Part #: 44579
$27.39/ea
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 QOB120 Miniature Circuit Breaker 20A 120/240V 1Ph , Bolt-On
Square D QOB120 Miniature Circuit Breaker 20A 120/240V 1Ph , Bolt-On
Manufacturer: Square-D / Schneider
Catalog #: QOB120
Capital Electric Part #: 10753
$35.49/ea
Product image for Square D QO2020 Tandem Circuit Breaker 20/20A 120/240V 1Ph , Plug-In
Square D QO2020 Tandem Circuit Breaker 20/20A 120/240V 1Ph , Plug-In
Manufacturer: Square-D / Schneider
Catalog #: QO2020
Capital Electric Part #: 1491
$76.28/ea
Product image for Square D QO115CAFI Arc-Fault Circuit Breaker 15A 120/240V 1P , Pigtail Neutral
Square D QO115CAFI Arc-Fault Circuit Breaker 15A 120/240V 1P , Pigtail Neutral
Manufacturer: Square-D / Schneider
Catalog #: QO115CAFI
Capital Electric Part #: 256008
$73.60/ea
Product image for Square D QO230GFI Circuit Breaker w/GFI 30A 120/240V 2P , Plug-On
Square D QO230GFI Circuit Breaker w/GFI 30A 120/240V 2P , Plug-On
Manufacturer: Square-D / Schneider
Catalog #: QO230GFI
Capital Electric Part #: 81467
$173.92/ea
ea
Product image for Square D QO250GFI Circuit Breaker w/GFI 50A 120/240V 2P , Plug-On
Square D QO250GFI Circuit Breaker w/GFI 50A 120/240V 2P , Plug-On
Manufacturer: Square-D / Schneider
Catalog #: QO250GFI
Capital Electric Part #: 23496
$122.79/ea
ea
Product image for Square D QOB330 Miniature Circuit Breaker 30A 240V 3Ph , Bolt-On
Square D QOB330 Miniature Circuit Breaker 30A 240V 3Ph , Bolt-On
Manufacturer: Square-D / Schneider
Catalog #: QOB330
Capital Electric Part #: 13856
$282.12/ea
ea
$84.53/ea
ea
Product image for Square D QO120CAFI Arc-Fault Miniature Circuit Breaker 20A 120V 1Ph 1P, Pigtail Neutral
Square D QO120CAFI Arc-Fault Miniature Circuit Breaker 20A 120V 1Ph 1P, Pigtail Neutral
Manufacturer: Square-D / Schneider
Catalog #: QO120CAFI
Capital Electric Part #: 255995
$73.60/ea
ea
192 Products found of 16


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