-
Available Now! 
Available Now!Noark
B1E3D60
Miniature Circuit Breaker, UL1077, 3-Poles, D-Curve, 60A, 5kA, 480Y/277VAC, Supplementary Protection
$43.11$43.11 -
LS Electric
0626033063
MCB, UL1077, 1-Pole, D-Curve, 1 Amp, 10kA, 120/240VAC, Thermal Magnetic Miniature Circuit Breaker
$7.62$7.62 -
LS Electric
0626037063
MCB, UL1077, 1-Pole, D-Curve, 2 Amp, 6kA, 277VAC, Thermal Magnetic Miniature Circuit Breaker
$7.62$7.62 -
$63.04$63.04 -
Noark
B1E1C4
Miniature Circuit Breaker, UL1077, 1-Pole, C-Curve, 4A, 5kA, 277VAC, Supplementary Protection
$14.30$14.30 -
Available Now! 
Available Now!Noark
B1E2C20
Miniature Circuit Breaker, UL1077, 2-Poles, C-Curve, 20A, 5kA, 480Y/277VAC, Supplementary Protection
$28.60$28.60 -
Available Now! 
Available Now!Noark
B1E2D30
Miniature Circuit Breaker, UL1077, 2-Poles, D-Curve, 30A, 5kA, 480Y/277VAC, Supplementary Protection
$28.60$28.60 -
Available Now! 
Available Now!Noark
B1E3D30
Miniature Circuit Breaker, UL1077, 3-Poles, D-Curve, 30A, 5kA, 480Y/277VAC, Supplementary Protection
$43.11$43.11 -
Available Now! 
Available Now!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
$40.70$40.70 -
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 -
Weg
UMBW-1D2-50
MCB, UL1077, 2-Pole, D-Curve, 50 Amp, 277/480Y VAC, 5kA, Thermal-Magnetic Miniature Circuit Breaker, IP20, UMBW Series
$22.56$22.56 -
LS Electric
02040001UL
MCCB, 2-Pole, 15 Amp, 25kA@480VAC, Fixed Thermal/Magnetic, Lugs Line/Load Side, 5.12 x 2.01 x 3.44" (HWD), Susol UL MCCB UTE100 Series, UL Listed, Molded Case Circuit Breaker
$258.16$258.16
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