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Available Now! 
Available Now!LS Electric
0626043063
MCB, UL489, 1-Pole, C-Curve, 1 Amp, 10kA, 277VAC, Thermal Magnetic Miniature Circuit Breaker
$25.91$25.91 -
LS Electric
0627056563
MCB, UL489, 2-Pole, C-Curve, 15 Amp, 10kA, 480Y/277VAC, Thermal Magnetic Miniature Circuit Breaker
$55.52$55.52 -
Noark
B1E1C4
Miniature Circuit Breaker, UL1077, 1-Pole, C-Curve, 4A, 5kA, 277VAC, Supplementary Protection
$14.30$14.30 -
LS Electric
0626032163
MCB, UL1077, 1-Pole, C-Curve, 6 Amp, 10kA, 120/240VAC, Thermal Magnetic Miniature Circuit Breaker
$11.05$11.05 -
LS Electric
0627049563
MCB, UL489, 2-Pole, C-Curve, 4 Amp, 10kA, 480Y/277VAC, Thermal Magnetic Miniature Circuit Breaker
$55.52$55.52 -
$23.73$23.73 -
$45.26$45.26 -
$36.87$36.87 -
LS Electric
0628028563
MCB, UL1077, 3-Pole, C-Curve, 10 Amp, 10kA, 240VAC, Thermal Magnetic Miniature Circuit Breaker
$37.66$37.66 -
Noark
B1E2C4
Miniature Circuit Breaker, UL1077, 2-Poles, C-Curve, 4A, 5kA, 480Y/277VAC, Supplementary Protection
$28.60$28.60 -
Available Now! 
Available Now!Noark
B1N1C25
Miniature Circuit Breaker, UL489, 1-Pole, C-Curve, 25A, 240VAC/60VDC, 10kA, Box Lugs
$17.57$17.57 -
$54.66$54.66
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