-
$53.47$53.47 -
Available Now! 
Available Now!Noark
B1N1B1
Miniature Circuit Breaker, UL489, 1-Pole, B-Curve, 1A, 240VAC/60VDC, 10kA, Box Lugs
$15.47$15.47 -
$14.11$14.11 -
Available Now! 
Available Now!Noark
B1N1C15
Miniature Circuit Breaker, UL489, 1-Pole, C-Curve, 15A, 240VAC/60VDC, 10kA, Box Lugs
$14.11$14.11 -
Noark
B1N2B30
Miniature Circuit Breaker, UL489, 2-Poles, B-Curve, 30A, 240VAC/125VDC, 10kA, Box Lugs
$30.52$30.52 -
$29.58$29.58 -
Noark
M1N100T1L
Molded Case Circuit Breaker, MCCB, UL489, M1N, 150 A Frame Size, 100kA @ 240VAC / 65kA @ 480VAC, 100 Amp, Thermal-Magnetic Trip, 1-Pole, Lug Line/Load Side Connection Connection, EX9M1N Series
$173.40$173.40 -
Available Now! 
Available Now!Weg
MPW18-3-D063
Manual Motor Protector, 18A, 4-6.3A Overload Setting Range, 3-Pole, 690V, 50/60Hz, On/Off Pushbutton, Screw Terminal, IP20
$40.70$40.70 -
Weg
UMBW-1C2-40
MCB, UL1077, 2-Pole, C-Curve, 40 Amp, 277/480Y VAC, 5kA, Thermal-Magnetic Miniature Circuit Breaker, IP20, UMBW Series
$17.76$17.76 -
Weg
UMBW-1D1-30
MCB, UL1077, 1-Pole, D-Curve, 30 Amp, 277VAC, 5kA, Thermal-Magnetic Miniature Circuit Breaker, IP20, UMBW Series
$9.25$9.25 -
Available Now! 
Available Now!Weg
UMBW-1D3-20
MCB, UL1077, 3-Pole, D-Curve, 20 Amp, 277/480Y VAC, 5kA, Thermal-Magnetic Miniature Circuit Breaker, IP20, UMBW Series
$24.05$24.05 -
Weg
UMBW-4C2-2
MCB, UL489, 2-Pole, C-Curve, 2 Amp, 277/480Y VAC, 125VDC, 10kA, Thermal-Magnetic Miniature Circuit Breaker, IP20, UMBW Series
$39.59$39.59
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