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Weg
MPW80-3-U050
Manual Motor Protector, 80A, 40-50A Overload Setting Range, 3-Pole, 690V, 50/50Hz, Terminal Box, Rotary Handle, IP20
$175.18$175.18 -
Available Now! 
Available Now!Weg
UMBW-1C3-60
MCB, UL1077, 3-Pole, C-Curve, 60 Amp, 277/480VAC, 5kA, Thermal-Magnetic Miniature Circuit Breaker, IP20, UMBW Series
$19.70$19.70 -
Available Now! 
Available Now!Weg
UMBW-1D2-1
MCB, UL1077, 2-Pole, D-Curve, 1 Amp, 277/480Y VAC, 5kA, Thermal-Magnetic Miniature Circuit Breaker, IP20, UMBW Series
$22.56$22.56 -
Weg
UMBW-4D2-40
MCB, UL489, 2-Pole, D-Curve, 40 Amp, 277/480VAC, 125VDC, 10kA, Thermal-Magnetic Miniature Circuit Breaker, IP20, UMBW Series
$50.29$50.29 -
Weg
DWB100JE100-3DX
MCCB, 100A@480Y/277VAC, 14kA IC, 80% Rated, 3-Pole, UL489, Fixed Thermal/Magnetic
$222.34$222.34 -
Weg
DWB250JE100-3DF
MCCB, 80-100A@480Y/277VAC, 14kA IC, 80% Rated, 3-Pole, UL489, Adjustable Thermal/Fixed Magnetic
$449.28$449.28 -
Weg
MPW18-3-C025
Manual Motor Protector, 18A, 0.1-0.25A Overload Setting Range, 3-Pole, 690V, 50/60Hz, On/Off Pushbutton, Screw Terminal, IP20
$44.72$44.72 -
Weg
MPW18-3-U004
Manual Motor Protector, 18A, 2.5-4A Overload Setting Range, 3-Pole, 690V, 50/60Hz, On/Off Pushbutton, Screw Terminal, IP20
$48.41$48.41 -
Weg
MPW40-3-C025
Manual Motor Protector, 40A, 0.16-0.25A Overload Setting Range, 3-Pole, Screw Terminal, Rotary Handle, IP20
$53.48$53.48 -
$255.36$255.36 -
Weg
UMBW-1B1-3
MCB, UL1077, 1-Pole, B-Curve, 3 Amp, 277VAC, 5kA, Thermal-Magnetic Miniature Circuit Breaker, IP20, UMBW Series
$11.75$11.75 -
Weg
UMBW-1B1-6
MCB, UL1077, 1-Pole, B-Curve, 6 Amp, 277VAC, 5kA, Thermal-Magnetic Miniature Circuit Breaker, IP20, UMBW Series
$11.75$11.75
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