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Available Now! 
Available Now!LS Electric
0626043763
MCB, UL489, 1-Pole, C-Curve, 20 Amp, 10kA, 277VAC, Thermal Magnetic Miniature Circuit Breaker
$15.68$15.68 -
Noark
B1D1D20
Miniature Circuit Breaker, UL489, 1-Pole, D-Curve, 20 Amp, 10kA, 125VDC, Box Lug, B1D Series
$29.83$29.83 -
$17.57$17.57 -
LS Electric
0626031763
MCB, UL1077, 1-Pole, C-Curve, 1 Amp, 10kA, 120/240VAC, Thermal Magnetic Miniature Circuit Breaker
$6.68$6.68 -
Available Now! 
Available Now!LS Electric
0626030963
MCB, UL1077, 1-Pole, B-Curve, 10 Amp, 10kA, 120/240VAC, Thermal Magnetic Miniature Circuit Breaker
$6.68$6.68 -
LS Electric
0627058163
MCB, UL1077, 2-Pole, D-Curve, 15 Amp, 10kA, 240VAC, Thermal Magnetic Miniature Circuit Breaker
$14.31$14.31 -
Weg
UMBW-4C2-3
MCB, UL489, 2-Pole, C-Curve, 3 Amp, 277/480VAC, 125VDC, 10kA, Thermal-Magnetic Miniature Circuit Breaker, IP20, UMBW Series
$50.29$50.29 -
LS Electric
0627038963
MCB, UL1077, 2-Pole, C-Curve, 40 Amp, 10kA, 240VAC, Thermal Magnetic Miniature Circuit Breaker
$14.31$14.31 -
LS Electric
0627038663
MCB, UL1077, 2-Pole, C-Curve, 20 Amp, 10kA, 240VAC, Thermal Magnetic Miniature Circuit Breaker
$14.31$14.31 -
$22.58$22.58 -
$23.73$23.73 -
LS Electric
0627036763
MCB, UL1077, 2-Pole, B-Curve, 2 Amp, 10kA, 240VAC, Thermal Magnetic Miniature Circuit Breaker
$14.31$14.31
A circuit breaker will interrupt the flow of current in an electrical circuit, safeguarding surrounding electrical components and wiring by preventing circuit overloads and short circuits.
a.k.a. MCB, MCCB, molded case breaker, supplementary protection, UL1077, UL489, UL508, MMP, manual motor protector