-
Available Now! 
Available Now!Noark
B1E1C1
Miniature Circuit Breaker, UL1077, 1-Pole, C-Curve, 1A, 5kA, 277VAC, Supplementary Protection
$14.30$14.30 -
Available Now! 
Available Now!Noark
B1E3D50
Miniature Circuit Breaker, UL1077, 3-Poles, D-Curve, 50A, 5kA, 480Y/277VAC, Supplementary Protection
$43.12$43.12 -
Available Now! 
Available Now!Noark
B1E3D15
Miniature Circuit Breaker, UL1077, 3-Poles, D-Curve, 15A, 5kA, 480Y/277VAC, Supplementary Protection
$43.12$43.12 -
LS Electric
0626042463
MCB, UL489, 1-Pole, B-Curve, 4 Amp, 10kA, 277VAC, Thermal Magnetic Miniature Circuit Breaker
$17.86$17.86 -
LS Electric
0628032763
MCB, UL1077, 3-Pole, C-Curve, 25 Amp, 6kA, 480Y/277VAC, Thermal Magnetic Miniature Circuit Breaker
$25.97$25.97 -
LS Electric
0628049663
MCB, UL1077, 3-Pole, D-Curve, 30 Amp, 6kA, 480Y/277VAC, Thermal Magnetic Miniature Circuit Breaker
$25.97$25.97 -
LS Electric
0626033563
MCB, UL1077, 1-Pole, D-Curve, 10 Amp, 10kA, 120/240VAC, Thermal Magnetic Miniature Circuit Breaker
$7.62$7.62 -
LS Electric
0626036263
MCB, UL1077, 1-Pole, C-Curve, 16 Amp, 6kA, 277VAC, Thermal Magnetic Miniature Circuit Breaker
$7.62$7.62 -
LS Electric
0627058063
MCB, UL1077, 2-Pole, D-Curve, 8 Amp, 10kA, 240VAC, Thermal Magnetic Miniature Circuit Breaker
$16.30$16.30 -
Available Now! 
Available Now!Weg
UMBW-1D3-30
MCB, UL1077, 3-Pole, D-Curve, 30 Amp, 277/480Y VAC, 5kA, Thermal-Magnetic Miniature Circuit Breaker, IP20, UMBW Series
$30.55$30.55 -
Available Now! 
Available Now!Weg
MPW40-3-U010
Manual Motor Protector, 40A, 6.3-10A Overload Setting Range, 3-Pole, Screw Terminal, Rotary Handle, IP20
$62.87$62.87 -
$23.74$23.74
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