-
Available Now! 
Available Now!Noark
B1N2D30
Miniature Circuit Breaker, UL489, 2-Poles, D-Curve, 30A, 240VAC/125VDC, 10kA, Box Lugs
$36.87$36.87 -
Available Now! 
Available Now!Weg
UMBW-1D2-40
MCB, UL1077, 2-Pole, D-Curve, 40 Amp, 277/480Y VAC, 5kA, Thermal-Magnetic Miniature Circuit Breaker, IP20, UMBW Series
$17.26$17.26 -
Weg
UMBW-1D2-20
MCB, UL1077, 2-Pole, D-Curve, 20 Amp, 277/480Y VAC, 5kA, Thermal-Magnetic Miniature Circuit Breaker, IP20, UMBW Series
$22.56$22.56 -
Weg
UMBW-4D2-6
MCB, UL489, 2-Pole, D-Curve, 6 Amp, 277/480Y VAC, 125VDC, 10kA, Thermal-Magnetic Miniature Circuit Breaker, IP20, UMBW Series
$50.29$50.29 -
Available Now! 
Available Now!LS Electric
0627050663
MCB, UL489, 2-Pole, D-Curve, 10 Amp, 10kA, 480Y/277VAC, Thermal Magnetic Miniature Circuit Breaker
$55.52$55.52 -
Available Now! 
$59.22$59.22 -
Noark
B1E2D15
Miniature Circuit Breaker, UL1077, 2-Poles, D-Curve, 15A, 5kA, 480Y/277VAC, Supplementary Protection
$28.60$28.60 -
Weg
UMBW-4D2-15
MCB, UL489, 2-Pole, D-Curve, 15 Amp, 277/480VAC, 125VDC, 10kA, Thermal-Magnetic Miniature Circuit Breaker, IP20, UMBW Series
$50.29$50.29 -
$36.87$36.87 -
LS Electric
0627056663
MCB, UL489, 2-Pole, D-Curve, 5 Amp, 10kA, 480Y/277VAC, Thermal Magnetic Miniature Circuit Breaker
$55.52$55.52 -
$42.04$42.04 -
ABL Sursum
2D8UR
Circuit Breaker, 2-Pole, D-Curve, 8 Amp, UL1077, 480Y/277VAC, 10kA, Supplementary Protection
$31.53$31.53
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