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Available Now! 
Available Now!LS Electric
0627050263
MCB, UL489, 2-Pole, D-Curve, 2 Amp, 10kA, 480Y/277VAC, Thermal Magnetic Miniature Circuit Breaker
$55.52$55.52 -
Noark
B1E2D2
Miniature Circuit Breaker, UL1077, 2-Poles, D-Curve, 2A, 5kA, 480Y/277VAC, Supplementary Protection
$28.60$28.60 -
LS Electric
0627040363
MCB, UL1077, 2-Pole, D-Curve, 50 Amp, 10kA, 240VAC, Thermal Magnetic Miniature Circuit Breaker, NCNR
$27.35$27.35 -
LS Electric
0627058063
MCB, UL1077, 2-Pole, D-Curve, 8 Amp, 10kA, 240VAC, Thermal Magnetic Miniature Circuit Breaker
$23.65$23.65 -
Available Now! 
Available Now!LS Electric
0627039763
MCB, UL1077, 2-Pole, D-Curve, 10 Amp, 10kA, 240VAC, Thermal Magnetic Miniature Circuit Breaker
$8.58$8.58 -
Available Now! 
Available Now!Noark
B1E2D20
Miniature Circuit Breaker, UL1077, 2-Poles, D-Curve, 20A, 5kA, 480Y/277VAC, Supplementary Protection
$28.60$28.60 -
Weg
UMBW-1D2-5
MCB, UL1077, 2-Pole, D-Curve, 5 Amp, 277/480Y VAC, 5kA, Thermal-Magnetic Miniature Circuit Breaker, IP20, UMBW Series
$22.56$22.56 -
LS Electric
0627058163
MCB, UL1077, 2-Pole, D-Curve, 15 Amp, 10kA, 240VAC, Thermal Magnetic Miniature Circuit Breaker
$23.65$23.65 -
LS Electric
0627043263
MCB, UL1077, 2-Pole, D-Curve, 2 Amp, 6kA, 480Y/277VAC, Thermal Magnetic Miniature Circuit Breaker
$23.65$23.65 -
Available Now! 
Available Now!Weg
UMBW-1D2-30
MCB, UL1077, 2-Pole, D-Curve, 30 Amp, 277/480Y VAC, 5kA, Thermal-Magnetic Miniature Circuit Breaker, IP20, UMBW Series
$22.56$22.56 -
Weg
UMBW-1D2-15
MCB, UL1077, 2-Pole, D-Curve, 15 Amp, 277/480VAC, 5kA, Thermal-Magnetic Miniature Circuit Breaker, IP20, UMBW Series
$22.56$22.56 -
Weg
UMBW-1D2-10
MCB, UL1077, 2-Pole, D-Curve, 10 Amp, 277/480Y VAC, 5kA, Thermal-Magnetic Miniature Circuit Breaker, IP20, UMBW Series
$22.56$22.56
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