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Available Now! 
Available Now!Noark
B1N2B35
Miniature Circuit Breaker, UL489, 2-Poles, B-Curve, 35A, 240VAC/125VDC, 10kA, Box Lugs
$38.11$38.11 -
Noark
B1N2C10
Miniature Circuit Breaker, UL489, 2-Poles, C-Curve, 10A, 240VAC/125VDC, 10kA, Box Lugs
$36.87$36.87 -
Noark
B1N2C32
Miniature Circuit Breaker, UL489, 2-Poles, C-Curve, 32A, 240VAC/125VDC, 10kA, Box Lugs
$36.87$36.87 -
Available Now! 
Available Now!Noark
B1N2D20
Miniature Circuit Breaker, UL489, 2-Poles, D-Curve, 20A, 240VAC/125VDC, 10kA, Box Lugs
$36.87$36.87 -
$54.66$54.66 -
$54.66$54.66 -
Available Now! 
Available Now!Noark
B1N3C5
Miniature Circuit Breaker, UL489, 3-Poles, C-Curve, 5A, 240VAC, 10kA, Box Lugs
$15.36$15.36 -
Weg
DWB100CE100-3DX
MCCB, 100A@480Y/277VAC, 10kA IC, 80% Rated, 3-Pole, UL489, Fixed Thermal/Magnetic
$196.22$196.22 -
Available Now! 
Available Now!Carlo Gavazzi
GSB631PC10
Supplementary Circuit Protector, UL1077, 1 Pole, C-Curve, 10A Overload Range, 277VAC, 5kA, DIN Rail Mount, IP20, GSB63 Series
$8.17$8.17 -
Sprecher and Schuh
L9-1/3/D
Miniature Circuit Breaker, D-Curve, 1 Amp, 480Y/277VAC, 10kA, 3-Pole, UL489 / CSA / CE, IP20
$219.73$219.73 -
Sprecher and Schuh
L9-10/1/C
Miniature Circuit Breaker, C-Curve, 10 Amp, 277VAC/48VDC, 10kA, 1-Pole, UL489 / CSA / CE, IP20
$82.61$82.61 -
Sprecher and Schuh
L9-4/1/D
Miniature Circuit Breaker, D-Curve, 4 Amp, 277VAC/48VDC, 10kA, 1-Pole, UL489 / CSA / CE, IP20
$82.61$82.61
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