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Noark
B1E3C20
Miniature Circuit Breaker, UL1077, 3-Poles, C-Curve, 20A, 5kA, 480Y/277VAC, Supplementary Protection
$41.88$41.88 -
$370.56$370.56 -
Weg
UBW600H-FTU600-3A
MCCB, 600A@480VAC, 65kA IC, with Lugs, 3-Pole, UL489, Fixed Thermal & Magnetic
$2,688.00$2,688.00 -
Available Now! 
Available Now!Weg
UMBW-1D2-6
MCB, UL1077, 2-Pole, D-Curve, 6 Amp, 277/480Y VAC, 5kA, Thermal-Magnetic Miniature Circuit Breaker, IP20, UMBW Series
$13.61$13.61 -
Noark
B1E1D10
Miniature Circuit Breaker, UL1077, 1-Pole, D-Curve, 10A, 5kA, 277VAC, Supplementary Protection
$14.30$14.30 -
Available Now! 
Available Now!Noark
B1E2B15
Miniature Circuit Breaker, UL1077, 2-Poles, B-Curve, 15A, 5kA, 480Y/277VAC, Supplementary Protection
$16.90$16.90 -
Noark
B1E2C10
Miniature Circuit Breaker, UL1077, 2-Poles, C-Curve, 10A, 5kA, 480Y/277VAC, Supplementary Protection
$28.60$28.60 -
Noark
B1E2C15
Miniature Circuit Breaker, UL1077, 2-Poles, C-Curve, 15A, 5kA, 480Y/277VAC, Supplementary Protection
$28.60$28.60 -
Noark
B1E2D32
Miniature Circuit Breaker, UL1077, 2-Poles, D-Curve, 32A, 5kA, 480Y/277VAC, Supplementary Protection
$28.60$28.60 -
Noark
B1E2D50
Miniature Circuit Breaker, UL1077, 2-Poles, D-Curve, 50A, 5kA, 480Y/277VAC, Supplementary Protection
$28.60$28.60 -
Noark
B1E3B30
Miniature Circuit Breaker, UL1077, 3-Poles, B-Curve, 30A, 5kA, 480Y/277VAC, Supplementary Protection
$41.88$41.88 -
Noark
B1E3C15
Miniature Circuit Breaker, UL1077, 3-Poles, C-Curve, 15A, 5kA, 480Y/277VAC, Supplementary Protection
$41.88$41.88
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