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Weg
UMBW-1C2-20
MCB, UL1077, 2-Pole, C-Curve, 20 Amp, 277/480Y VAC, 5kA, Thermal-Magnetic Miniature Circuit Breaker, IP20, UMBW Series
$22.56$22.56 -
Available Now! 
Available Now!Weg
MPW18-3-U016
Manual Motor Protector, 18A, 10-16A Overload Setting Range, 3-Pole, 690V, 50/60Hz, On/Off Pushbutton, Screw Terminal, IP20
$57.63$57.63 -
LS Electric
0627036763
MCB, UL1077, 2-Pole, B-Curve, 2 Amp, 10kA, 240VAC, Thermal Magnetic Miniature Circuit Breaker
$23.65$23.65 -
$71.65$71.65 -
LS Electric
0628029863
MCB, UL1077, 3-Pole, D-Curve, 10 Amp, 10kA, 240VAC, Thermal Magnetic Miniature Circuit Breaker
$37.66$37.66 -
Available Now! 
Available Now!Noark
B1E1D3
Miniature Circuit Breaker, UL1077, 1-Pole, D-Curve, 3A, 5kA, 277VAC, Supplementary Protection
$14.30$14.30 -
Available Now! 
Available Now!Noark
B1N2C20
Miniature Circuit Breaker, UL489, 2-Poles, C-Curve, 20A, 240VAC/125VDC, 10kA, Box Lugs
$36.87$36.87 -
Available Now! 
Available Now!Noark
B1E1C3
Miniature Circuit Breaker, UL1077, 1-Pole, C-Curve, 3A, 5kA, 277VAC, Supplementary Protection
$14.30$14.30 -
Noark
B1E2C6
Miniature Circuit Breaker, UL1077, 2-Poles, C-Curve, 6A, 5kA, 480Y/277VAC, Supplementary Protection
$28.60$28.60 -
Available Now! 
Available Now!Noark
B1N1C20
Miniature Circuit Breaker, UL489, 1-Pole, C-Curve, 20A, 240VAC/60VDC, 10kA, Box Lugs
$17.57$17.57 -
$17.57$17.57 -
Weg
UMBW-4C3-15
MCB, UL489, 3-Pole, C-Curve, 15 Amp (15A), 277/480Y VAC, 125VDC, 10kA, Thermal-Magnetic Miniature Circuit Breaker, IP20, UMBW Series, Recommended Replacement for UMBW-4B3-15 (14361333), UMBW-4B3-16 (14361335) and UMBW-4C3-16 (13641892)
$74.26$74.26
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