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LS Electric
0627041163
MCB, UL1077, 2-Pole, B-Curve, 16 Amp, 6kA, 480Y/277VAC, Thermal Magnetic Miniature Circuit Breaker
$16.30$16.30 -
LS Electric
0627048163
MCB, UL489, 2-Pole, D-Curve, 50 Amp, 10kA, 240VAC, Thermal Magnetic Miniature Circuit Breaker
$44.27$44.27 -
Available Now! 
Available Now!LS Electric
0627049363
MCB, UL489, 2-Pole, C-Curve, 2 Amp, 10kA, 480Y/277VAC, Thermal Magnetic Miniature Circuit Breaker
$38.28$38.28 -
LS Electric
0628039163
MCB, UL489, 3-Pole, B-Curve, 20 Amp, 10kA, 480Y/277VAC, Thermal Magnetic Miniature Circuit Breaker
$63.18$63.18 -
$29.62$29.62 -
Noark
B1D2C30
Miniature Circuit Breaker, UL489, 2-Poles, C-Curve, 30 Amp, 10kA, 250VDC, Box Lug, B1D Series
$59.66$59.66 -
Noark
B1E2C2
Miniature Circuit Breaker, UL1077, 2-Poles, C-Curve, 2A, 5kA, 480Y/277VAC, Supplementary Protection
$28.60$28.60 -
Noark
B1E2D15
Miniature Circuit Breaker, UL1077, 2-Poles, D-Curve, 15A, 5kA, 480Y/277VAC, Supplementary Protection
$28.60$28.60 -
Available Now! 
Available Now!Noark
B1H3D6
Miniature Circuit Breaker, UL489, 3-Poles, D-Curve, 6A, 480Y/277VAC, 10kA, Box Lugs
$67.82$67.82 -
$54.66$54.66 -
Available Now! 
Available Now!Weg
UBW225N-FTU125-3A
MCCB, 125A@480VAC, 35kA IC, with Lugs, 3-Pole, UL489, Fixed Thermal & Magnetic
$422.40$422.40 -
Available Now! 
Available Now!Weg
UMBW-1C1-10
MCB, UL1077, 1-Pole, C-Curve, 10 Amp, 277VAC, 5kA, Thermal-Magnetic Miniature Circuit Breaker, IP20, UMBW Series
$11.75$11.75
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