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Available Now! 
Available Now!LS Electric
0627056863
MCB, UL489, 2-Pole, D-Curve, 15 Amp, 10kA, 480Y/277VAC, Thermal Magnetic Miniature Circuit Breaker, This is the Recommended Replacement for 0627056963, BK63HU 2P D15A 10kA 240VAC UL489.
$38.28$38.28 -
LS Electric
0628039063
MCB, UL489, 3-Pole, B-Curve, 16 Amp, 10kA, 480Y/277VAC, Thermal Magnetic Miniature Circuit Breaker
$63.18$63.18 -
Available Now! 
Available Now!LS Electric
0628046863
MCB, UL489, 3-Pole, C-Curve, 8 Amp, 10kA, 480Y/277VAC, Thermal Magnetic Miniature Circuit Breaker
$63.18$63.18 -
ABL Sursum
1C8UR
Circuit Breaker, 1-Pole, C-Curve, 8 Amp, UL1077, 277VAC, 10kA, Supplementary Protection
$15.76$15.76 -
Available Now! 
Available Now!Noark
B1E3D63
Miniature Circuit Breaker, UL1077, 3-Poles, D-Curve, 63A, 5kA, 480Y/277VAC, Supplementary Protection
$43.12$43.12 -
$19.31$19.31 -
Noark
B1N2C16
Miniature Circuit Breaker, UL489, 2-Poles, C-Curve, 16A, 240VAC/125VDC, 10kA, Box Lugs
$36.87$36.87 -
Weg
UMBW-4C3-5
MCB, UL489, 3-Pole, C-Curve, 5 Amp, 277/480Y VAC, 125VDC, 10kA, Thermal-Magnetic Miniature Circuit Breaker, IP20, UMBW Series
$74.26$74.26 -
LS Electric
0626035963
MCB, UL1077, 1-Pole, C-Curve, 4 Amp, 6kA, 277VAC, Thermal Magnetic Miniature Circuit Breaker
$7.62$7.62 -
LS Electric
0628034363
MCB, UL1077, 3-Pole, D-Curve, 50 Amp, 6kA, 480Y/277VAC, Thermal Magnetic Miniature Circuit Breaker
$33.98$33.98 -
Noark
B1N2D60
Miniature Circuit Breaker, UL489, 2-Poles, D-Curve, 60A, 240VAC/125VDC, 10kA, Box Lugs
$36.87$36.87 -
LS Electric
0626033763
MCB, UL1077, 1-Pole, D-Curve, 20 Amp, 10kA, 120/240VAC, Thermal Magnetic Miniature Circuit Breaker
$7.62$7.62
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