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 QO140 Miniature Circuit Breaker 40A 120/240V 1Ph 1P , Plug-On
Square D QO140 Miniature Circuit Breaker 40A 120/240V 1Ph 1P , Plug-On
Manufacturer: Square-D / Schneider
Catalog #: QO140
Capital Electric Part #: 49678
$16.13/ea
ea
Product image for Square D QO160 Miniature Circuit Breaker 60A 120/240V 1Ph 1P , Plug-On
Square D QO160 Miniature Circuit Breaker 60A 120/240V 1Ph 1P , Plug-On
Manufacturer: Square-D / Schneider
Catalog #: QO160
Capital Electric Part #: 87122
$18.29/ea
ea
Product image for Square D QOB240VH 2-Pole 40 Amp 240 Volt Bolt-On Thermal Magnetic Miniature Circuit Breaker
Square D QOB240VH 2-Pole 40 Amp 240 Volt Bolt-On Thermal Magnetic Miniature Circuit Breaker
Manufacturer: Square-D / Schneider
Catalog #: QOB240VH
Capital Electric Part #: 181475
$164.65/ea
ea
Product image for Square D QO350SWN1021 3-Pole 50 Amp 120/240 Volt Plug-On Miniature Circuit Breaker
Square D QO350SWN1021 3-Pole 50 Amp 120/240 Volt Plug-On Miniature Circuit Breaker
Manufacturer: Square-D / Schneider
Catalog #: QO350SWN1021
Capital Electric Part #: 426052
$290.68/ea
ea
Product image for Square D QOB350VH Miniature Circuit Breaker 50A 240V 3Ph , Bolt-On
Square D QOB350VH Miniature Circuit Breaker 50A 240V 3Ph , Bolt-On
Manufacturer: Square-D / Schneider
Catalog #: QOB350VH
Capital Electric Part #: 157929
$423.67/ea
ea
Product image for Square D QOB150 Miniature Circuit Breaker 50A 120240V 1Ph , Bolt-On
Square D QOB150 Miniature Circuit Breaker 50A 120240V 1Ph , Bolt-On
Manufacturer: Square-D / Schneider
Catalog #: QOB150
Capital Electric Part #: 64847
$35.49/ea
ea
Product image for Square D QOB135 1-Pole 35 Amp 120/240 Volt Bolt-On Thermal Magnetic Miniature Circuit Breaker
Square D QOB135 1-Pole 35 Amp 120/240 Volt Bolt-On Thermal Magnetic Miniature Circuit Breaker
Manufacturer: Square-D / Schneider
Catalog #: QOB135
Capital Electric Part #: 431985
$35.49/ea
ea
Product image for Square D QOB3601021 240 Volt 60 Amp Miniature Circuit Breaker
Square D QOB3601021 240 Volt 60 Amp Miniature Circuit Breaker
Manufacturer: Square-D / Schneider
Catalog #: QOB3601021
Capital Electric Part #: 166556
$429.72/ea
ea
Product image for Square D QOB140 Miniature Circuit Breaker 40A 120/240V 1Ph , Bolt-On
Square D QOB140 Miniature Circuit Breaker 40A 120/240V 1Ph , Bolt-On
Manufacturer: Square-D / Schneider
Catalog #: QOB140
Capital Electric Part #: 95429
$35.49/ea
ea
Product image for Square D QO360VH 3-Pole 60 Amp 240 Volt Plug-On Miniature Circuit Breaker
Square D QO360VH 3-Pole 60 Amp 240 Volt Plug-On Miniature Circuit Breaker
Manufacturer: Square-D / Schneider
Catalog #: QO360VH
Capital Electric Part #: 133807
$143.76/ea
ea
Product image for Square D QO240VH 2-Pole 40 Amp 120/240 Volt Plug-On Thermal Magnetic Miniature Circuit Breaker
Square D QO240VH 2-Pole 40 Amp 120/240 Volt Plug-On Thermal Magnetic Miniature Circuit Breaker
Manufacturer: Square-D / Schneider
Catalog #: QO240VH
Capital Electric Part #: 153055
$56.57/ea
ea
Product image for Square D QOB340VH 240 Volt 40 Amp Miniature Circuit Breaker
Square D QOB340VH 240 Volt 40 Amp Miniature Circuit Breaker
Manufacturer: Square-D / Schneider
Catalog #: QOB340VH
Capital Electric Part #: 156640
$423.67/ea
ea
43 Products found of 4


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