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Noark
M1D1503L
MCS, UL489, M1D, 150 A Frame Size, 150 Amp, 3-Pole, Line/Load Lug Connection, Ex9M1D Molded Case Switch Series
$252.45$252.45 -
Available Now! Available Now!Weg
UMBW-1C3-30
MCB, UL1077, 3-Pole, C-Curve, 32 Amp, 277/480VAC, 5kA, Thermal-Magnetic Miniature Circuit Breaker, IP20, UMBW Series
$24.05$24.05 -
Available Now! Available Now!LS Electric
0626050563
MCB, UL489, 1-Pole, C-Curve, 15 Amp, 10kA, 277VAC, Thermal Magnetic Miniature Circuit Breaker
$16.21$16.21 -
Available Now! Available Now!LS Electric
0626050863
MCB, UL489, 1-Pole, D-Curve, 15 Amp, 10kA, 277VAC, Thermal Magnetic Miniature Circuit Breaker
$16.21$16.21 -
Available Now! Available Now!Noark
B1E3D50
Miniature Circuit Breaker, UL1077, 3-Poles, D-Curve, 50A, 5kA, 480Y/277VAC, Supplementary Protection
$34.51$34.51 -
Available Now! Available Now!LS Electric
0626050363
MCB, UL489, 1-Pole, C-Curve, 5 Amp, 10kA, 277VAC, Thermal Magnetic Miniature Circuit Breaker
$16.21$16.21 -
LS Electric
0627047463
MCB, UL489, 2-Pole, D-Curve, 6 Amp, 10kA, 240VAC, Thermal Magnetic Miniature Circuit Breaker, NCNR, Discontinued, Replaced by 0627050563, BK63HU 2P D6A 10kA 480Y/277VAC UL489
$34.72$34.72 -
LS Electric
0628049663
MCB, UL1077, 3-Pole, D-Curve, 30 Amp, 6kA, 480Y/277VAC, Thermal Magnetic Miniature Circuit Breaker
$23.55$23.55 -
Noark
B1E3D40
Miniature Circuit Breaker, UL1077, 3-Poles, D-Curve, 40A, 5kA, 480Y/277VAC, Supplementary Protection
$34.51$34.51 -
Available Now! Available Now!Weg
UMBW-1C3-40
MCB, UL1077, 3-Pole, C-Curve, 40 Amp, 277/480Y VAC, 5kA, Thermal-Magnetic Miniature Circuit Breaker, IP20, UMBW Series
$24.05$24.05 -
Available Now! Available Now!LS Electric
0627049363
MCB, UL489, 2-Pole, C-Curve, 2 Amp, 10kA, 480Y/277VAC, Thermal Magnetic Miniature Circuit Breaker
$34.72$34.72 -
$17.66$17.66
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