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$19.30$19.30 -
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 -
Weg
UMBW-4C2-40
MCB, UL489, 2-Pole, C-Curve, 40 Amp, 277/480VAC, 10kA, Thermal-Magnetic Miniature Circuit Breaker, IP20, UMBW Series
$50.29$50.29 -
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 -
LS Electric
0627049363
MCB, UL489, 2-Pole, C-Curve, 2 Amp, 10kA, 480Y/277VAC, Thermal Magnetic Miniature Circuit Breaker
$33.59$33.59 -
$29.62$29.62 -
$23.73$23.73 -
$67.82$67.82 -
Noark
B1N2B15
Miniature Circuit Breaker, UL489, 2-Poles, B-Curve, 15A, 240VAC/125VDC, 10kA, Box Lugs
$38.11$38.11 -
$56.18$56.18 -
Weg
UMBW-4D1-5
MCB, UL489, 1-Pole, D-Curve, 5 Amp, 277VAC/60VDC, 10kA, Thermal-Magnetic Miniature Circuit Breaker, IP20, UMBW Seriess
$24.91$24.91
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