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Noark
B1N2C63
Miniature Circuit Breaker, UL489, 2-Poles, C-Curve, 63A, 240VAC/125VDC, 10kA, Box Lugs
$36.87$36.87 -
LS Electric
0627037063
MCB, UL1077, 2-Pole, B-Curve, 6 Amp, 10kA, 240VAC, Thermal Magnetic Miniature Circuit Breaker
$23.65$23.65 -
Available Now! 
Available Now!LS Electric
0627049263
MCB, UL489, 2-Pole, C-Curve, 1 Amp, 10kA, 480Y/277VAC, Thermal Magnetic Miniature Circuit Breaker
$55.52$55.52 -
Available Now! 
$59.22$59.22 -
Available Now! 
Available Now!Noark
B1N2D30
Miniature Circuit Breaker, UL489, 2-Poles, D-Curve, 30A, 240VAC/125VDC, 10kA, Box Lugs
$36.87$36.87 -
Weg
UMBW-1C2-1.2
MCB, UL1077, 2-Pole, C-Curve, 1.2 Amp, 277/480VAC, 5kA, Thermal-Magnetic Miniature Circuit Breaker, IP20, UMBW Series
$22.56$22.56 -
Weg
UMBW-1C2-50
MCB, UL1077, 2-Pole, C-Curve, 50 Amp, 277/480Y VAC, 5kA, Thermal-Magnetic Miniature Circuit Breaker, IP20, UMBW Series
$22.56$22.56 -
Available Now! 
Available Now!Weg
UMBW-1D2-40
MCB, UL1077, 2-Pole, D-Curve, 40 Amp, 277/480Y VAC, 5kA, Thermal-Magnetic Miniature Circuit Breaker, IP20, UMBW Series
$18.44$18.44 -
Weg
UMBW-4C2-40
MCB, UL489, 2-Pole, C-Curve, 40 Amp, 277/480VAC, 10kA, Thermal-Magnetic Miniature Circuit Breaker, IP20, UMBW Series
$50.29$50.29 -
Noark
B1E2C2
Miniature Circuit Breaker, UL1077, 2-Poles, C-Curve, 2A, 5kA, 480Y/277VAC, Supplementary Protection
$28.60$28.60 -
Noark
B1N2B15
Miniature Circuit Breaker, UL489, 2-Poles, B-Curve, 15A, 240VAC/125VDC, 10kA, Box Lugs
$38.11$38.11 -
Weg
UMBW-1C2-3
MCB, UL1077, 2-Pole, C-Curve, 3 Amp, 277/480Y VAC, 5kA, Thermal-Magnetic Miniature Circuit Breaker, IP20, UMBW Series
$22.56$22.56
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