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Noark
B1E3D30
Miniature Circuit Breaker, UL1077, 3-Poles, D-Curve, 30A, 5kA, 480Y/277VAC, Supplementary Protection
$43.11$43.11 -
Noark
B1N2D60
Miniature Circuit Breaker, UL489, 2-Poles, D-Curve, 60A, 240VAC/125VDC, 10kA, Box Lugs
$36.87$36.87 -
Weg
MPW40-3-U004
Manual Motor Protector, 40A, 2.5-4.0A Overload Setting Range, 3-Pole, Screw Terminal, Rotary Handle, IP20
$63.16$63.16 -
LS Electric
0626033763
MCB, UL1077, 1-Pole, D-Curve, 20 Amp, 10kA, 120/240VAC, Thermal Magnetic Miniature Circuit Breaker
$9.90$9.90 -
$42.04$42.04 -
Available Now! 
Available Now!ABL Sursum
3D60UL
Circuit Breaker, 3-Pole, D-Curve, 60 Amp, UL48910kA, Branch Circuit Protection, 240VAC
$94.56$94.56 -
Noark
B1E1C20
Miniature Circuit Breaker, UL1077, 1-Pole, C-Curve, 20A, 5kA, 277VAC, Supplementary Protection
$14.30$14.30 -
$67.82$67.82 -
$56.18$56.18 -
Weg
MPW18-3-D063
Manual Motor Protector, 18A, 4-6.3A Overload Setting Range, 3-Pole, 690V, 50/60Hz, On/Off Pushbutton, Screw Terminal, IP20
$48.41$48.41 -
Weg
UMBW-1D2-10
MCB, UL1077, 2-Pole, D-Curve, 10 Amp, 277/480Y VAC, 5kA, Thermal-Magnetic Miniature Circuit Breaker, IP20, UMBW Series
$22.56$22.56 -
LS Electric
0627056263
MCB, UL489, 2-Pole, B-Curve, 15 Amp, 10kA, 480Y/277VAC, Thermal Magnetic Miniature Circuit Breaker
$49.76$49.76
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