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$45.26$45.26 -
$45.26$45.26 -
$66.70$66.70 -
$19.30$19.30 -
Available Now! 
Available Now!Noark
B1N3D50
Miniature Circuit Breaker, UL489, 3-Poles, D-Curve, 50A, 240VAC, 10kA, Box Lugs
$48.88$48.88 -
$56.18$56.18 -
Available Now! 
Available Now!Weg
MPW18-3-U018
Manual Motor Protector, 18A, 12-18A Overload Setting Range, 3-Pole, 690V, 50/60Hz, On/Off Pushbutton, Screw Terminal, IP20
$66.85$66.85 -
$255.36$255.36 -
$255.36$255.36 -
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-1C3-60
MCB, UL1077, 3-Pole, C-Curve, 60 Amp, 277/480VAC, 5kA, Thermal-Magnetic Miniature Circuit Breaker, IP20, UMBW Series
$30.55$30.55 -
Available Now! 
Available Now!Weg
UMBW-4C1-15
MCB, UL489, 1-Pole, C-Curve, 15 Amp, 277VAC/60VDC, 10kA, Thermal-Magnetic Miniature Circuit Breaker, IP20, UMBW Series This is the Recommended Replacement for UMBW-4B1-15 (14360169), UMBW-4B1-16 (14360170) and UMBW-4C1-16 (13634520)
$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