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Available Now! 
Available Now!Weg
MPW18-3-D004
Manual Motor Protector, 18A, 0.25-0.4A Overload Setting Range, 3-Pole, 690V, 50/60Hz, On/Off Pushbutton, Screw Terminal, IP20
$44.72$44.72 -
Weg
MPW18-3-U010
Manual Motor Protector, 18A, 6.3-10A Overload Setting Range, 3-Pole, 690V, 50/60Hz, On/Off Pushbutton, Screw Terminal, IP20
$57.63$57.63 -
$370.56$370.56 -
Weg
UBW225N-FTU150-3A
MCCB, 150A@480VAC, 35kA IC, with Lugs, 3-Pole, UL489, Fixed Thermal & Magnetic
$595.20$595.20 -
Weg
UBW400N-FTU300-3A
MCCB, 300A@480VAC, 35kA IC, with Lugs, 3-Pole, UL489, Fixed Thermal & Magnetic
$1,152.00$1,152.00 -
Weg
UBW600H-FTU600-3A
MCCB, 600A@480VAC, 65kA IC, with Lugs, 3-Pole, UL489, Fixed Thermal & Magnetic
$2,688.00$2,688.00 -
Available Now! 
Available Now!Weg
UMBW-1D2-6
MCB, UL1077, 2-Pole, D-Curve, 6 Amp, 277/480Y VAC, 5kA, Thermal-Magnetic Miniature Circuit Breaker, IP20, UMBW Series
$13.61$13.61 -
Weg
UMBW-4D1-60
MCB, UL489, 1-Pole, D-Curve, 60 Amp, 120VAC/60VDC, 10kA, Thermal-Magnetic Miniature Circuit Breaker, IP20, UMBW Series
$24.91$24.91 -
Weg
UMBW-4D2-50
MCB, UL489, 2-Pole, D-Curve, 50 Amp, 277/480VAC, 125VDC, 10kA, Thermal-Magnetic Miniature Circuit Breaker, IP20, UMBW Series
$50.29$50.29 -
Weg
DWB100CH80-3DX
MCCB, 80A@480Y/277VAC, 10kA IC, 100% Rated, 3-Pole, UL489, Fixed Thermal/Magnetic
$238.85$238.85 -
$214.27$214.27 -
Weg
MPW100-3-U075
Manual Motor Protector, 100A, 55-75A Overload Setting Range, 3-Pole, 690V, 50/60Hz, Terminal Box, IP20
$306.57$306.57
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