-
Available Now! 
Available Now!Noark
B1E3D60
Miniature Circuit Breaker, UL1077, 3-Poles, D-Curve, 60A, 5kA, 480Y/277VAC, Supplementary Protection
$33.77$33.77 -
Available Now! 
Available Now!Noark
B1H3D20
Miniature Circuit Breaker, UL489, 3-Poles, D-Curve, 20A, 480Y/277VAC, 10kA, Box Lugs
$67.82$67.82 -
LS Electric
0628038263
MCB, UL489, 3-Pole, D-Curve, 50 Amp, 10kA, 240VAC, Thermal Magnetic Miniature Circuit Breaker
$69.60$69.60 -
Available Now! 
Available Now!Noark
B1H3D30
Miniature Circuit Breaker, UL489, 3-Poles, D-Curve, 30A, 480Y/277VAC, 10kA, Box Lugs
$67.82$67.82 -
$63.04$63.04 -
LS Electric
0628033863
MCB, UL1077, 3-Pole, D-Curve, 16 Amp, 6kA, 480Y/277VAC, Thermal Magnetic Miniature Circuit Breaker
$22.79$22.79 -
$56.18$56.18 -
Weg
UMBW-4D3-50
MCB, UL489, 3-Pole, D-Curve, 50 Amp, 240VAC/125VDC, 10kA, Thermal-Magnetic Miniature Circuit Breaker, IP20, UMBW Series
$74.26$74.26 -
$56.18$56.18 -
$67.82$67.82 -
Weg
UMBW-1D3-2
MCB, UL1077, 3-Pole, D-Curve, 2 Amp, 277/480Y VAC, 5kA, Thermal-Magnetic Miniature Circuit Breaker, IP20, UMBW Series
$30.55$30.55 -
Weg
UMBW-1D3-40
MCB, UL1077, 3-Pole, D-Curve, 40 Amp, 277/480Y VAC, 5kA, Thermal-Magnetic Miniature Circuit Breaker, IP20, UMBW Series
$30.55$30.55
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