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$53.47$53.47 -
$15.47$15.47 -
Noark
B1E3D32
Miniature Circuit Breaker, UL1077, 3-Poles, D-Curve, 32A, 5kA, 480Y/277VAC, Supplementary Protection
$34.51$34.51 -
LS Electric
0626036363
MCB, UL1077, 1-Pole, C-Curve, 20 Amp, 6kA, 277VAC, Thermal Magnetic Miniature Circuit Breaker
$7.71$7.71 -
Available Now! 
Available Now!LS Electric
0626037063
MCB, UL1077, 1-Pole, D-Curve, 2 Amp, 6kA, 277VAC, Thermal Magnetic Miniature Circuit Breaker
$7.71$7.71 -
Available Now! 
Available Now!Noark
B1E2C20
Miniature Circuit Breaker, UL1077, 2-Poles, C-Curve, 20A, 5kA, 480Y/277VAC, Supplementary Protection
$22.95$22.95 -
Weg
UMBW-1C1-20
MCB, UL1077, 1-Pole, C-Curve, 20 Amp, 277VAC, 5kA, Thermal-Magnetic Miniature Circuit Breaker, IP20, UMBW Series
$9.25$9.25 -
LS Electric
0626034963
MCB, UL1077, 1-Pole, B-Curve, 16 Amp, 6kA, 277VAC, Thermal Magnetic Miniature Circuit Breaker
$7.71$7.71 -
LS Electric
0626035963
MCB, UL1077, 1-Pole, C-Curve, 4 Amp, 6kA, 277VAC, Thermal Magnetic Miniature Circuit Breaker
$7.71$7.71 -
Available Now! 
Available Now!LS Electric
0626050863
MCB, UL489, 1-Pole, D-Curve, 15 Amp, 10kA, 277VAC, Thermal Magnetic Miniature Circuit Breaker
$18.08$18.08 -
LS Electric
0627049563
MCB, UL489, 2-Pole, C-Curve, 4 Amp, 10kA, 480Y/277VAC, Thermal Magnetic Miniature Circuit Breaker
$38.73$38.73 -
Available Now! 
Available Now!Weg
MPW40-3-D025
Manual Motor Protector, 40A, 1.6-2.5A Overload Setting Range, 3-Pole, Screw Terminal, Rotary Handle, IP20
$53.43$53.43
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