-
$56.18$56.18 -
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
$22.56$22.56 -
Weg
UMBW-4D3-50
MCB, UL489, 3-Pole, D-Curve, 50 Amp, 240VAC/125VDC, 10kA, Thermal-Magnetic Miniature Circuit Breaker, IP20, UMBW Series
$74.26$74.26 -
Available Now! 
Available Now!Noark
B1N2D30
Miniature Circuit Breaker, UL489, 2-Poles, D-Curve, 30A, 240VAC/125VDC, 10kA, Box Lugs
$36.87$36.87 -
$56.18$56.18 -
LS Electric
0626033363
MCB, UL1077, 1-Pole, D-Curve, 4 Amp, 10kA, 120/240VAC, Thermal Magnetic Miniature Circuit Breaker
$7.62$7.62 -
Available Now! 
Available Now!LS Electric
0626044463
MCB, UL489, 1-Pole, D-Curve, 10 Amp, 10kA, 277VAC, Thermal Magnetic Miniature Circuit Breaker
$17.86$17.86 -
LS Electric
0627048163
MCB, UL489, 2-Pole, D-Curve, 50 Amp, 10kA, 240VAC, Thermal Magnetic Miniature Circuit Breaker
$44.27$44.27 -
$29.62$29.62 -
Noark
B1E1D3
Miniature Circuit Breaker, UL1077, 1-Pole, D-Curve, 3A, 5kA, 277VAC, Supplementary Protection
$14.30$14.30 -
Noark
B1E2D15
Miniature Circuit Breaker, UL1077, 2-Poles, D-Curve, 15A, 5kA, 480Y/277VAC, Supplementary Protection
$28.60$28.60 -
$67.82$67.82
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