Mini Circuit Breakers

Miniature circuit breakers (MCBs) are found in single, double, and four-pole configurations. They can be used to protect both single-phase and three-phase systems. The different types have been developed to suit specific areas of use. 'B'-type MCBs tend to be used in domestic installations. They trip at lower currents and are suitable for the touchy business of inrush current. 'C' and 'D' MCBs tend to be used in commercial and industrial installations. They can handle higher inrush currents operating in those contexts.

There are various reasons why MCBs are better than fuses. MCBs can be reset after they trip, so they do not have to be replaced like fuses do. When a fuse burns out, that's it—there is no more protection. But when an MCB trips, it can be reset, and you are right back in business. You should also be aware that the circuit level of MCBs can often be adjusted.

 

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Schneider Electric EGB14030CBP E Frame Breaker, 30 A, 1 P, 277 V, 35/65 kA, bolt on mounting, CBP
Schneider Electric EGB14030CBP E Frame Breaker, 30 A, 1 P, 277 V, 35/65 kA, bolt on mounting, CBP
$277.70 $566.75
E Frame Breaker, 30 A, 1 P, 277 V, 35/65 kA, bolt on mounting, CBP
Schneider Electric QO120VHPAF - 20 Amp, 120 VAC, Single Pole, 22 kA
Schneider Electric QO120VHPAF - 20 Amp, 120 VAC, Single Pole, 22 kA
$776.87 $984.00
Schneider Electric QO120VHPAF - Mini circuit breaker, QO, 20A, 1 pole, 120VAC, 22kA, combo arc fault, plug on neutral, plug in mount
Schneider Electric QOUQ220B - 20 Amp, 120 VAC, 48 VDC, Two Pole, 10 kA
Schneider Electric QOUQ220B - 20 Amp, 120 VAC, 48 VDC, Two Pole, 10 kA
$193.19 $258.00
Schneider Electric QOUQ220B - Mini circuit breaker, QOU, 20A, 2 pole, 120/240 VAC, 10kA, four point quick connect terminals, bulk pack
Schneider Electric QOUQ260B - 60 Amp, 120/240 VAC, Two Pole, 10 kA
Schneider Electric QOUQ260B - 60 Amp, 120/240 VAC, Two Pole, 10 kA
$53.47 $71.40
Schneider Electric QOUQ260B - Mini circuit breaker, QOU, 60A, 2 pole, 120/240VAC, 10kA, four point quick connect terminals, bulk pack
Schneider Electric QOB120VHCAFIFT - 20 Amp, 120 VAC, Single Pole, 22 kA
Schneider Electric QOB120VHCAFIFT - 20 Amp, 120 VAC, Single Pole, 22 kA
$50.89 $67.95
Schneider Electric QOB120VHCAFIFT - Mini circuit breaker, QO, 20A, 1 pole, 120/240VAC, 22kA, combo arc fault, pigtail, bolt on mount, fungal treatment
Schneider Electric QO120VHPAFGF - 20 Amp, 120 VAC, Single Pole, 22 kA
Schneider Electric QO120VHPAFGF - 20 Amp, 120 VAC, Single Pole, 22 kA
$50.89 $67.95
Schneider Electric QO120VHPAFGF - Mini circuit breaker, QO, 20A, 1 pole, 120VAC, 22kA, dual function, plug on neutral, plug in mount
Schneider Electric QOU120B - 20 Amp, 120/240 VAC, Single Pole, 10 kA
Schneider Electric QOU120B - 20 Amp, 120/240 VAC, Single Pole, 10 kA
$42.45 $56.70
Schneider Electric QOU120B - Mini circuit breaker, QOU, 20A, 1 pole, 120/240VAC, 10kA, bulk pack
Schneider Electric QOU115B - 15 Amp, 120/240 VAC, Single Pole, 10 kA
Schneider Electric QOU115B - 15 Amp, 120/240 VAC, Single Pole, 10 kA
$42.45 $56.70
Schneider Electric QOU115B - Mini circuit breaker, QOU, 15A, 1 pole, 120/240 VAC, 10kA, bulk pack
Schneider Electric QOUR3105283 - 10 Amp, 240 VAC, Three Pole, 10 kA
Schneider Electric QOUR3105283 - 10 Amp, 240 VAC, Three Pole, 10 kA
$42.45 $56.70
Schneider Electric QOUR3105283 - Mini circuit breaker, QOU, 10A, 3 pole, 240 VAC, 10kA, field reversible lugs, ring terminal
Schneider Electric QOB330J - 30 Amp, 240 VAC, 120 VAC, Three Pole, 10 kA
Schneider Electric QOB330J - 30 Amp, 240 VAC, 120 VAC, Three Pole, 10 kA
$319.21 $439.50
Schneider Electric QOB330J - Mini circuit breaker, QO, 30A, 3 pole, 120/240VAC, 10kA, bolt on mount, Japan only
Schneider Electric EDB34060CA - 60 Amp, 480Y/277 VAC, Three Pole, 25 kA
Schneider Electric EDB34060CA - 60 Amp, 480Y/277 VAC, Three Pole, 25 kA
$319.21 $439.50
Schneider Electric EDB34060CA - Mini circuit breaker, E-Frame, 60A, 3 pole, 480Y/277VAC, 25kA max, bolt on, 50 degrees C
Schneider Electric QOU240B - 40 Amp, 120 VAC, 48 VDC, Two Pole, 10 kA
Schneider Electric QOU240B - 40 Amp, 120 VAC, 48 VDC, Two Pole, 10 kA
$684.50 $867.00
Schneider Electric QOU240B - Mini circuit breaker, QOU, 40A, 2 pole, 120/240 VAC, 10kA, bulk pack