-
$23.73$23.73 -
$67.82$67.82 -
Available Now! 
Available Now!Noark
B1N2D30
Miniature Circuit Breaker, UL489, 2-Poles, D-Curve, 30A, 240VAC/125VDC, 10kA, Box Lugs
$36.87$36.87 -
Available Now! 
Available Now!Noark
B1N3D25
Miniature Circuit Breaker, UL489, 3-Poles, D-Curve, 25A, 240VAC, 10kA, Box Lugs
$56.18$56.18 -
Weg
DWB100JH100-3DX
MCCB, 100A@480Y/277VAC, 14kA IC, 100% Rated, 3-Pole, UL489, Fixed Thermal/Magnetic
$267.65$267.65 -
Available Now! 
Available Now!Weg
UBW225N-FTU100-3A
MCCB, 100A@480VAC, 35kA IC, with Lugs, 3-Pole, UL489, Fixed Thermal & Magnetic
$279.55$279.55 -
Weg
UMBW-1C1-5
MCB, UL1077, 1-Pole, C-Curve, 5 Amp, 277VAC, 5kA, Thermal-Magnetic Miniature Circuit Breaker, IP20, UMBW Series
$11.75$11.75 -
Weg
UMBW-1C2-3
MCB, UL1077, 2-Pole, C-Curve, 3 Amp, 277/480Y VAC, 5kA, Thermal-Magnetic Miniature Circuit Breaker, IP20, UMBW Series
$22.56$22.56 -
LS Electric
0626030863
MCB, UL1077, 1-Pole, B-Curve, 6 Amp, 10kA, 120/240VAC, Thermal Magnetic Miniature Circuit Breaker
$7.62$7.62 -
LS Electric
0626033363
MCB, UL1077, 1-Pole, D-Curve, 4 Amp, 10kA, 120/240VAC, Thermal Magnetic Miniature Circuit Breaker
$7.62$7.62 -
LS Electric
0626051163
MCB, UL1077, 1-Pole, B-Curve, 15 Amp, 10kA, 120/240VAC, Thermal Magnetic Miniature Circuit Breaker
$7.62$7.62 -
LS Electric
0627041163
MCB, UL1077, 2-Pole, B-Curve, 16 Amp, 6kA, 480Y/277VAC, Thermal Magnetic Miniature Circuit Breaker
$16.30$16.30
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