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LS Electric
0628040163
MCB, UL489, 3-Pole, C-Curve, 25 Amp, 10kA, 480Y/277VAC, Thermal Magnetic Miniature Circuit Breaker
$63.94$63.94 -
$53.47$53.47 -
LS Electric
0626035763
MCB, UL1077, 1-Pole, C-Curve, 2 Amp, 6kA, 277VAC, Thermal Magnetic Miniature Circuit Breaker
$7.71$7.71 -
Available Now! 
Available Now!LS Electric
0627056563
MCB, UL489, 2-Pole, C-Curve, 15 Amp, 10kA, 480Y/277VAC, Thermal Magnetic Miniature Circuit Breaker
$38.73$38.73 -
Available Now! 
Available Now!LS Electric
0628039863
MCB, UL489, 3-Pole, C-Curve, 10 Amp, 10kA, 480Y/277VAC, Thermal Magnetic Miniature Circuit Breaker
$63.94$63.94 -
Noark
B1E2C40
Miniature Circuit Breaker, UL1077, 2-Poles, C-Curve, 40A, 5kA, 480Y/277VAC, Supplementary Protection
$22.95$22.95 -
Available Now! 
Available Now!Weg
UMBW-1C1-5
MCB, UL1077, 1-Pole, C-Curve, 5 Amp, 277VAC, 5kA, Thermal-Magnetic Miniature Circuit Breaker, IP20, UMBW Series
$9.25$9.25 -
Weg
UMBW-1C1-6
MCB, UL1077, 1-Pole, C-Curve, 6 Amp, 277VAC, 5kA, Thermal-Magnetic Miniature Circuit Breaker, IP20, UMBW Series
$9.25$9.25 -
LS Electric
0627046963
MCB, UL489, 2-Pole, C-Curve, 63 Amp, 10kA, 240VAC, Thermal Magnetic Miniature Circuit Breaker
$44.80$44.80 -
Available Now! 
Available Now!Noark
B1H1C2
Miniature Circuit Breaker, UL489, 1-Pole, C-Curve, 2A, 277VAC, 10kA, Box Lugs
$18.11$18.11 -
Noark
B1N2C40
Miniature Circuit Breaker, UL489, 2-Poles, C-Curve, 40A, 240VAC/125VDC, 10kA, Box Lugs
$29.58$29.58 -
Weg
UMBW-1C1-3
MCB, UL1077, 1-Pole, C-Curve, 3 Amp, 277VAC, 5kA, Thermal-Magnetic Miniature Circuit Breaker, IP20, UMBW Series
$9.25$9.25
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