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$67.82$67.82 -
$19.30$19.30 -
$17.57$17.57 -
Noark
B1N2B30
Miniature Circuit Breaker, UL489, 2-Poles, B-Curve, 30A, 240VAC/125VDC, 10kA, Box Lugs
$38.11$38.11 -
$36.87$36.87 -
Available Now! 
Available Now!Noark
B1N2D50
Miniature Circuit Breaker, UL489, 2-Poles, D-Curve, 50A, 240VAC/125VDC, 10kA, Box Lugs
$36.87$36.87 -
Weg
DWB100JE100-3DX
MCCB, 100A@480Y/277VAC, 14kA IC, 80% Rated, 3-Pole, UL489, Fixed Thermal/Magnetic
$222.34$222.34 -
Weg
DWB250JE100-3DF
MCCB, 80-100A@480Y/277VAC, 14kA IC, 80% Rated, 3-Pole, UL489, Adjustable Thermal/Fixed Magnetic
$449.28$449.28 -
Carlo Gavazzi
GMB632PC30
MCB, UL489, 2 Pole, C-Curve, 30 Amp, 240VAC, 60/125VDC, 10kA, Lug Terminals, DIN Rail Mounting, Thermal-Magnetic Miniature Circuit Breaker, GMB63 Series
$67.67$67.67 -
Carlo Gavazzi
GSB632PC20
Supplementary Circuit Protector, UL1077, 2 Pole, C-Curve, 20A Overload Range, 277VAC, 5kA, DIN Rail Mount, IP20, GSB63 Series
$24.10$24.10 -
Noark
M1N100T1L
Molded Case Circuit Breaker, MCCB, UL489, M1N, 150 A Frame Size, 100kA @ 240VAC / 65kA @ 480VAC, 100 Amp, Thermal-Magnetic Trip, 1-Pole, Lug Line/Load Side Connection Connection, EX9M1N Series
$217.12$217.12 -
Noark
M1N30T3L
Molded Case Circuit Breaker, MCCB, UL489, M1N, 150 A Frame Size, 100kA @ 240VAC / 65kA @ 480VAC, 30 Amp, Thermal-Magnetic Trip, 3-Pole, Lug Line/Load Side Connection, EX9M1N Series
$333.56$333.56
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