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LS Electric
02070129UL
MCCB, 3 Pole, 40 Amp (40A), 150kA@240VAC, Fixed Thermal/Magnetic Trip, Lugs Line/Load Side, UL Listed, 6.50 x 4.13 x 3.44" (HWD), Susol UL MCCB UTS150 Series, Molded Case Circuit Breaker
$510.22$510.22 -
Noark
M3S300T3L
MCCB, UL489, 400 A Frame Size, 50kA@600VDC, 65kA@240VAC, 42kA@480VAC, 18kA@600VAC, 300 Amp, Thermal-Magnetic Trip, 3-Pole, Lug Line/Load SIde Cable Lugs, Molded Case Circuit Breaker, EX9M3S Series
$858.50$858.50 -
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 -
LS Electric
02050079UL
MCCB, 3-Pole, 60 Amp, 35ka@480VAC, Adjustable Thermal/Fixed Magnetic, Lugs Line/Load Side, 5.12 x 2.99 x 3.44" (HWD), Susol UL MCCB UTE100 Series, UL Listed, Molded Case Circuit Breaker, Non-Cancellable, No Returns
$324.00$324.00 -
Noark
M1S150T22L
MCCB, UL489, M1S, 2 Pole, 150 Amp (150A), 50kA @ 240VAC, 35kA @ 480VAC, 14kA @ 600VAC, 20kA @ 600VDC, 150 A Frame Size, Adjustable Thermal/Fixed Magnetic Trip, Lug Line /Load Side Connection, Molded Case Circuit Breaker
$279.65$279.65 -
Available Now! 
Available Now!Noark
B1E2P100
Miniature Circuit Breaker, UL1077, 2-Poles, 100A, 5kA, 480Y/277VAC, 125VDC, Supplementary Protection
$27.88$27.88 -
Altech Corp.
2CU20L
Circuit Breaker, UL489, 2-Pole, C-Curve, 20 Amp, 10kA, Branch Circuit Protection, Miniature Molded Case Circuit Breaker, IP20
$45.93$45.93 -
Weg
UMBW-1B1-1
MCB, UL1077, 1-Pole, B-Curve, 1 Amp, 277VAC, 5kA, Thermal-Magnetic Miniature Circuit Breaker, UMBW Series
$9.25$9.25 -
Available Now! 
Available Now!LS Electric
0627047163
MCB, UL489, 2-Pole, D-Curve, 2 Amp, 10kA, 240VAC, Thermal Magnetic Miniature Circuit Breaker, NCNR
$34.72$34.72
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