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Noark
B1E2D10
Miniature Circuit Breaker, UL1077, 2-Poles, D-Curve, 10A, 5kA, 480Y/277VAC, Supplementary Protection
$28.60$28.60 -
Available Now! 
Available Now!Noark
B1H3D20
Miniature Circuit Breaker, UL489, 3-Poles, D-Curve, 20A, 480Y/277VAC, 10kA, Box Lugs
$67.82$67.82 -
$19.31$19.31 -
Noark
B1N2B60
Miniature Circuit Breaker, UL489, 2-Poles, B-Curve, 60A, 240VAC/125VDC, 10kA, Box Lugs
$38.11$38.11 -
Noark
B1N2D13
Miniature Circuit Breaker, UL489, 2-Poles, D-Curve, 13A, 240VAC/125VDC, 10kA, Box Lugs
$36.87$36.87 -
$54.65$54.65 -
Weg
MPW40-3-C063
Manual Motor Protector, 40A, 0.40-0.63A Overload Setting Range, 3-Pole, Screw Terminal, Rotary Handle, IP20
$53.09$53.09 -
Available Now! 
Available Now!Weg
MPW40-3-D063
Manual Motor Protector, 40A, 4.0-6.3A Overload Setting Range, 3-Pole, Screw Terminal, Rotary Handle, IP20
$63.16$63.16 -
LS Electric
02050076UL
MCCB, 3-Pole, 100 Amp, 35kA@480VAC, Fixed Thermal/Magnetic, Lugs Line/Load Side, 5.12 x 2.99 x 3.44" (HWD), Susol UL MCCB UTE100 Series, UL Listed, Molded Case Circuit Breaker
$393.90$393.90 -
LS Electric
0626035863
MCB, UL1077, 1-Pole, C-Curve, 3 Amp, 6kA, 277VAC, Thermal Magnetic Miniature Circuit Breaker
$7.62$7.62 -
Available Now! 
Available Now!LS Electric
0627056563
MCB, UL489, 2-Pole, C-Curve, 15 Amp, 10kA, 480Y/277VAC, Thermal Magnetic Miniature Circuit Breaker
$38.28$38.28 -
LS Electric
0628040163
MCB, UL489, 3-Pole, C-Curve, 25 Amp, 10kA, 480Y/277VAC, Thermal Magnetic Miniature Circuit Breaker
$63.18$63.18
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