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Noark
B1E2B25
Miniature Circuit Breaker, UL1077, 2-Poles, B-Curve, 25A, 5kA, 480Y/277VAC, Supplementary Protection, Special Order, Non-Cancellable, No Returns
$22.10$22.10 -
Weg
UMBW-1B1-6
MCB, UL1077, 1-Pole, B-Curve, 6 Amp, 277VAC, 5kA, Thermal-Magnetic Miniature Circuit Breaker, IP20, UMBW Series
$9.25$9.25 -
LS Electric
0626034763
MCB, UL1077, 1-Pole, B-Curve, 6 Amp, 6kA, 277VAC, Thermal Magnetic Miniature Circuit Breaker
$7.71$7.71 -
LS Electric
0626038263
MCB, UL489, 1-Pole, B-Curve, 1 Amp, 10kA, 120/240VAC, Thermal Magnetic Miniature Circuit Breaker, NCNR
$18.08$18.08 -
LS Electric
0628030663
MCB, UL1077, 3-Pole, B-Curve, 1 Amp, 6kA, 480Y/277VAC, Thermal Magnetic Miniature Circuit Breaker
$26.27$26.27 -
LS Electric
0628031163
MCB, UL1077, 3-Pole, B-Curve, 10 Amp, 6kA, 480Y/277VAC, Thermal Magnetic Miniature Circuit Breaker
$26.27$26.27 -
ABL Sursum
1B10UR
Circuit Breaker, 1-Pole, B-Curve, 10 Amp, UL1077, 277VAC, 10kA, Supplementary Protection
$13.25$13.25 -
Noark
B1E2B15
Miniature Circuit Breaker, UL1077, 2-Poles, B-Curve, 15A, 5kA, 480Y/277VAC, Supplementary Protection
$22.10$22.10 -
Available Now! 
Available Now!Noark
B1E2B30
Miniature Circuit Breaker, UL1077, 2-Poles, B-Curve, 30A, 5kA, 480Y/277VAC, Supplementary Protection
$22.10$22.10 -
Available Now! 
Available Now!Noark
B1E2B50
Miniature Circuit Breaker, UL1077, 2-Poles, B-Curve, 50A, 5kA, 480Y/277VAC, Supplementary Protection
$22.10$22.10 -
Noark
B1E3B30
Miniature Circuit Breaker, UL1077, 3-Poles, B-Curve, 30A, 5kA, 480Y/277VAC, Supplementary Protection
$33.58$33.58 -
Available Now! 
Available Now!LS Electric
0626030563
MCB, UL1077, 1-Pole, B-Curve, 2 Amp, 10kA, 120/240VAC, Thermal Magnetic Miniature Circuit Breaker
$7.71$7.71
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