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ABL Sursum
3B50UR
Circuit Breaker, 3-Pole, B-Curve, 50 Amp, UL1077, 480Y/277VAC, 10kA, Supplementary Protection
$50.15$50.15 -
Noark
B1D2C10
Miniature Circuit Breaker, UL489, 2-Poles, C-Curve, 10 Amp, 10kA, 250VDC, Box Lug, B1D Series
$59.66$59.66 -
Noark
B1E1D1.6
Miniature Circuit Breaker, UL1077, 1-Pole, D-Curve, 1.6A, 5kA, 277VAC, Supplementary Protection
$14.30$14.30 -
$23.73$23.73 -
$67.82$67.82 -
Available Now! 
Available Now!Noark
B1N1C6
Miniature Circuit Breaker, UL489, 1-Pole, C-Curve, 6A, 240VAC/60VDC, 10kA, Box Lugs
$17.57$17.57 -
$36.87$36.87 -
Noark
M1S150T3L
MCCB, UL489, M1S, 3 Pole, 150 Amp (150A), 50kA @ 240VAC, 35kA @ 480VAC, 14kA @ 600VAC, 20kA @ 600VDC, 150 A Frame, Adjustable Thermal/Magnetic Trip, Lug Line/Load Side Connection, Molded Case Circuit Breaker
$440.83$440.83 -
Available Now! 
Available Now!Weg
MPW40-3-D016
Manual Motor Protector, 40A, 1.0-1.6A Overload Setting Range, 3-Pole, Screw Terminal, Rotary Handle, IP20
$63.16$63.16 -
Available Now! 
Available Now!Weg
UMBW-1D1-15
MCB, UL1077, 1-Pole, D-Curve, 15 Amp, 277VAC, 5kA, Thermal-Magnetic Miniature Circuit Breaker, IP20, UMBW Series
$11.75$11.75 -
Weg
UMBW-1D1-3
MCB, UL1077, 1-Pole, D-Curve, 3 Amp, 277VAC, 5kA, Thermal-Magnetic Miniature Circuit Breaker, IP20, UMBW Series
$11.75$11.75 -
Weg
UMBW-1D3-40
MCB, UL1077, 3-Pole, D-Curve, 40 Amp, 277/480Y VAC, 5kA, Thermal-Magnetic Miniature Circuit Breaker, IP20, UMBW Series
$30.55$30.55
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