Square D Miniature Circuit Breakers

Square D by Schneider Electric has created four different lines of miniature circuit breakers for residential and industrial circuit protection. They are: lighting panelboard miniature circuit breakers, Homeline miniature circuit breakers, QO and QOB miniature circuit breakers and QOU unit mount circuit breakers.

A special feature provided by most of Square D miniature circuit breakers is the VISI-TRIP indication. When the circuit breaker has tripped, the handle moves to the center position and the red VISI-TRIP indicator appears in a window in the circuit breaker case. Trip indication immediately provides a visual indication that the circuit breaker has been tripped and interrupted the circuit.

Lighting panelboard miniature circuit breakers are designed to be used with the NF series lighting panelboards. NF lighting panelboards are used for commercial and industrial lighting and electrical distribution. Lighting panelboard miniature circuit breakers have current ratings from 15 to 125 Amps.

Homeline miniature circuit breakers are designed for fast installation and superior circuit protection. They have a full range of amperages, poles and advanced function devices that offer Arc Fault, Combination Arc Fault (CAFI), Ground Fault (Class A, GFCI) and Dual Function (CAFI and GFCI) protection.

QO and QOB miniature circuit breakers come in a complete range of amperages and interrupting ranges to fit into various QO distribution panels. Plug-on QO circuit breakers are used in NQ panelsboards, QO load centers or Speed-D switchboard distribution panels. Bolt-on QOB are used in NQOD panelboards. 

QOU unit mount circuit breakers are used for overcurrent protection and switching on both AC and DC electrical systems. They are available for flush, surface or DIN rail mounted applications in one, two or three pole constructions.

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$3616.05
E-Frame Brkr 20A, 1P, 277V, 35/65kA, Bolt-on Mnt, 30mA, Alarm SW
$3361.74
E-Frame Brkr 15A, 1P, 277V, 18/25kA, Bolt-on Mnt, 30mA, Alarm SW
$15047.89
E-Frame Brkr 70A, 1P, 277V, 18/25kA, Bolt-on Mnt, Alarm/Aux SW
$1376.08
MINIATURE CIRCUIT BREAKER 480Y/277V 20A
$3126.80
E-Frame Brkr 25A, 2P, 480Y/277V, 18/25kA, Bolt-on Mnt, Shunt Trip
$6541.82
E-Frame Brkr 125A, 2P, 480Y/277V, 18/25kA, Bolt-on Mnt, Shunt Trip
$2746.55
E-Frame Branch Brkr 80A, 2P, 600Y/347V, 14kA, Bolt-on Mnt
$1717.54
MINIATURE CIRCUIT BREAKER 480Y/277V 20A
$3773.48
E-Frame Brkr 20A, 3P, 480Y/277V, 18/25kA, Bolt-on Mnt, Shunt Trip
$4204.59
E-Frame Brkr 25A, 3P, 480Y/277V, 18/25kA, Bolt-on Mnt, Alarm/Aux SW, Shunt Trip
$1717.54
MINIATURE CIRCUIT BREAKER 480Y/277V 25A
$3773.48
E-Frame Brkr 30A, 3P, 480Y/277V, 18/25kA, Bolt-on Mnt, Shunt Trip
$4204.59
E-Frame Brkr 35A, 3P, 480Y/277V, 18/25kA, Bolt-on Mnt, Alarm/Aux SW, Shunt Trip
$3773.48
E-Frame Brkr 40A, 3P, 480Y/277V, 18/25kA, Bolt-on Mnt, Shunt Trip
$2375.98
E-Frame Brkr 50A, 3P, 480Y/277V, 18/25kA, Bolt-on Mnt, Alarm/Aux SW
$4204.59
E-Frame Brkr 50A, 3P, 480Y/277V, 18/25kA, Bolt-on Mnt, Alarm/Aux SW, Shunt Trip
$1944.87
E-Frame Brkr 40A, 3P, 480Y/277V, 18/25kA, Bolt-on Mnt, Copper Lugs
$2375.98
E-Frame Brkr 60A, 3P, 480Y/277V, 18/25kA, Bolt-on Mnt, Alarm/Aux SW