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Noark
B1E2C15
Miniature Circuit Breaker, UL1077, 2-Poles, C-Curve, 15A, 5kA, 480Y/277VAC, Supplementary Protection
$22.95$22.95 -
Noark
B1E3C50
Miniature Circuit Breaker, UL1077, 3-Poles, C-Curve, 50A, 5kA, 480Y/277VAC, Supplementary Protection
$33.58$33.58 -
$18.11$18.11 -
$53.47$53.47 -
Available Now! 
Available Now!Noark
B1N2C30
Miniature Circuit Breaker, UL489, 2-Poles, C-Curve, 30A, 240VAC/125VDC, 10kA, Box Lugs
$29.58$29.58 -
Weg
UMBW-1C2-3
MCB, UL1077, 2-Pole, C-Curve, 3 Amp, 277/480Y VAC, 5kA, Thermal-Magnetic Miniature Circuit Breaker, IP20, UMBW Series
$17.76$17.76 -
Available Now! 
Available Now!LS Electric
0626043163
MCB, UL489, 1-Pole, C-Curve, 2 Amp, 10kA, 277VAC, Thermal Magnetic Miniature Circuit Breaker
$18.08$18.08 -
LS Electric
0627057863
MCB, UL1077, 2-Pole, C-Curve, 30 Amp, 10kA, 240VAC, Thermal Magnetic Miniature Circuit Breaker
$16.50$16.50 -
Noark
B1H2C0.5
Miniature Circuit Breaker, UL489, 2-Poles, C-Curve, 0.5A, 480Y/277VAC, 10kA, Box Lugs
$35.36$35.36 -
$53.47$53.47 -
Available Now! 
Available Now!Noark
B1N1C5
Miniature Circuit Breaker, UL489, 1-Pole, C-Curve, 5A, 240VAC/60VDC, 10kA, Box Lugs
$14.11$14.11 -
Available Now! 
Available Now!Noark
B1N2C20
Miniature Circuit Breaker, UL489, 2-Poles, C-Curve, 20A, 240VAC/125VDC, 10kA, Box Lugs
$29.58$29.58
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