-
Available Now! 
Available Now!LS Electric
0626035663
MCB, UL1077, 1-Pole, C-Curve, 1 Amp, 6kA, 277VAC, Thermal Magnetic Miniature Circuit Breaker
$6.68$6.68 -
LS Electric
0626036363
MCB, UL1077, 1-Pole, C-Curve, 20 Amp, 6kA, 277VAC, Thermal Magnetic Miniature Circuit Breaker
$6.68$6.68 -
Available Now! 
Available Now!Weg
UMBW-1C1-6
MCB, UL1077, 1-Pole, C-Curve, 6 Amp, 277VAC, 5kA, Thermal-Magnetic Miniature Circuit Breaker, IP20, UMBW Series
$11.75$11.75 -
Available Now! 
Available Now!LS Electric
0626043563
MCB, UL489, 1-Pole, C-Curve, 10 Amp, 10kA, 277VAC, Thermal Magnetic Miniature Circuit Breaker
$15.68$15.68 -
Available Now! 
Available Now!LS Electric
0626043263
MCB, UL489, 1-Pole, C-Curve, 3 Amp, 10kA, 277VAC, Thermal Magnetic Miniature Circuit Breaker
$15.68$15.68 -
Available Now! 
Available Now!Noark
B1E1C2
Miniature Circuit Breaker, UL1077, 1-Pole, C-Curve, 2A, 5kA, 277VAC, Supplementary Protection
$14.30$14.30 -
Available Now! 
Available Now!LS Electric
0626043363
MCB, UL489, 1-Pole, C-Curve, 4 Amp, 10kA, 277VAC, Thermal Magnetic Miniature Circuit Breaker
$15.68$15.68 -
Noark
B1D1D20
Miniature Circuit Breaker, UL489, 1-Pole, D-Curve, 20 Amp, 10kA, 125VDC, Box Lug, B1D Series
$29.83$29.83 -
Available Now! 
Available Now!LS Electric
0626043763
MCB, UL489, 1-Pole, C-Curve, 20 Amp, 10kA, 277VAC, Thermal Magnetic Miniature Circuit Breaker
$15.68$15.68 -
LS Electric
0626031763
MCB, UL1077, 1-Pole, C-Curve, 1 Amp, 10kA, 120/240VAC, Thermal Magnetic Miniature Circuit Breaker
$6.68$6.68 -
$17.57$17.57 -
Weg
UMBW-1B1-1
MCB, UL1077, 1-Pole, B-Curve, 1 Amp, 277VAC, 5kA, Thermal-Magnetic Miniature Circuit Breaker, UMBW Series
$11.75$11.75
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