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$22.58$22.58 -
Available Now! 
Available Now!Noark
B1H1C2
Miniature Circuit Breaker, UL489, 1-Pole, C-Curve, 2A, 277VAC, 10kA, Box Lugs
$23.73$23.73 -
$45.26$45.26 -
$66.70$66.70 -
$17.57$17.57 -
Noark
M1S150T3L
MCCB, UL489, M1S, 3 Pole, 150 Amp (150A), 50kA @ 240VAC, 35kA @ 480VAC, 14kA @ 600VAC, 20kA @ 600VDC, 150 A Frame, Adjustable Thermal/Magnetic Trip, Lug Line/Load Side Connection, Molded Case Circuit Breaker
$440.83$440.83 -
$255.36$255.36 -
$255.36$255.36 -
Weg
UMBW-1B1-4
MCB, UL1077, 1-Pole, B-Curve, 4 Amp, 277VAC, 5kA, Thermal-Magnetic Miniature Circuit Breaker, IP20, UMBW Series
$11.75$11.75 -
Weg
UMBW-1C2-1
MCB, UL1077, 2-Pole, C-Curve, 1 Amp, 277/480Y VAC, 5kA, Thermal-Magnetic Miniature Circuit Breaker, IP20, UMBW Series
$22.56$22.56 -
Weg
UMBW-4C1-15
MCB, UL489, 1-Pole, C-Curve, 15 Amp, 277VAC/60VDC, 10kA, Thermal-Magnetic Miniature Circuit Breaker, IP20, UMBW SeriesThis is the Recommended Replacement for UMBW-4B1-15 (14360169), UMBW-4B1-16 (14360170) and UMBW-4C1-16 (13634520)
$24.91$24.91 -
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
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