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Available Now! 
Available Now!Noark
B1N2B35
Miniature Circuit Breaker, UL489, 2-Poles, B-Curve, 35A, 240VAC/125VDC, 10kA, Box Lugs
$38.11$38.11 -
Weg
UMBW-1B1-8
MCB, UL1077, 1-Pole, B-Curve, 8 Amp, 277VAC, 5kA, Thermal-Magnetic Miniature Circuit Breaker, IP20, UMBW Series
$11.75$11.75 -
LS Electric
0626030763
MCB, UL1077, 1-Pole, B-Curve, 4 Amp, 10kA, 120/240VAC, Thermal Magnetic Miniature Circuit Breaker
$6.68$6.68 -
LS Electric
0626050163
MCB, UL489, 1-Pole, B-Curve, 8 Amp, 10kA, 277VAC, Thermal Magnetic Miniature Circuit Breaker
$15.68$15.68 -
LS Electric
0626052263
MCB, UL1077, 1-Pole, B-Curve, 8 Amp, 6kA, 277VAC, Thermal Magnetic Miniature Circuit Breaker
$6.68$6.68 -
LS Electric
0627037163
MCB, UL1077, 2-Pole, B-Curve, 10 Amp, 10kA, 240VAC, Thermal Magnetic Miniature Circuit Breaker, NCNR
$14.31$14.31 -
LS Electric
0627037463
MCB, UL1077, 2-Pole, B-Curve, 25 Amp, 10kA, 240VAC, Thermal Magnetic Miniature Circuit Breaker
$14.31$14.31 -
LS Electric
0627040563
MCB, UL1077, 2-Pole, B-Curve, 1 Amp, 6kA, 480Y/277VAC, Thermal Magnetic Miniature Circuit Breaker
$14.31$14.31 -
LS Electric
0628027463
MCB, UL1077, 3-Pole, B-Curve, 20 Amp, 10kA, 240VAC, Thermal Magnetic Miniature Circuit Breaker
$22.79$22.79 -
Available Now! 
Available Now!LS Electric
0628030863
MCB, UL1077, 3-Pole, B-Curve, 3 Amp, 6kA, 480Y/277VAC, Thermal Magnetic Miniature Circuit Breaker
$6.45$6.45 -
ABL Sursum
1B6UR
Circuit Breaker, 1-Pole, B-Curve, 6 Amp, UL1077, 277VAC, 10kA, Supplementary Protection
$15.76$15.76 -
$42.04$42.04
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