-
Available Now! 
Available Now!Noark
B1E2C30
Miniature Circuit Breaker, UL1077, 2-Poles, C-Curve, 30A, 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 -
$67.82$67.82 -
$54.66$54.66 -
Sprecher and Schuh
L9-3/1/C
Miniature Circuit Breaker, C-Curve, 3 Amp, 277VAC/48VDC, 10kA, 1-Pole, UL489 / CSA / CE, IP20
$82.61$82.61 -
Weg
UBW225N-FTU125-3A
MCCB, 125A@480VAC, 35kA IC, with Lugs, 3-Pole, UL489, Fixed Thermal & Magnetic
$422.40$422.40 -
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 -
Available Now! 
Available Now!LS Electric
0626050663
MCB, UL489, 1-Pole, D-Curve, 5 Amp, 10kA, 277VAC, Thermal Magnetic Miniature Circuit Breaker
$24.38$24.38 -
Available Now! 
Available Now!LS Electric
0627050663
MCB, UL489, 2-Pole, D-Curve, 10 Amp, 10kA, 480Y/277VAC, Thermal Magnetic Miniature Circuit Breaker
$52.25$52.25 -
LS Electric
0628033163
MCB, UL1077, 3-Pole, C-Curve, 63 Amp, 6kA, 480Y/277VAC, Thermal Magnetic Miniature Circuit Breaker
$44.17$44.17 -
ABL Sursum
1D10UR
Circuit Breaker, 1-Pole, D-Curve, 10 Amp, UL1077, 277VAC, 10kA, Supplementary Protection
$15.76$15.76 -
ABL Sursum
3B50UR
Circuit Breaker, 3-Pole, B-Curve, 50 Amp, UL1077, 480Y/277VAC, 10kA, Supplementary Protection
$50.15$50.15
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