-
Available Now! 
Available Now!Weg
UMBW-1D3-50
MCB, UL1077, 3-Pole, D-Curve, 50 Amp, 277/480Y VAC, 5kA, Thermal-Magnetic Miniature Circuit Breaker, IP20, UMBW Series
$28.60$28.60 -
$23.74$23.74 -
LS Electric
0626052663
MCB, UL1077, 1-Pole, C-Curve, 8 Amp, 6kA, 277VAC, Thermal Magnetic Miniature Circuit Breaker
$10.52$10.52 -
LS Electric
0626030463
MCB, UL1077, 1-Pole, B-Curve, 1 Amp, 10kA, 120/240VAC, Thermal Magnetic Miniature Circuit Breaker,
$10.52$10.52 -
LS Electric
0626032363
MCB, UL1077, 1-Pole, C-Curve, 16 Amp, 10kA, 120/240VAC, Thermal Magnetic Miniature Circuit Breaker
$10.52$10.52 -
Noark
B1N1B0.5
Miniature Circuit Breaker, UL489, 1-Pole, B-Curve, 0.5A, 240VAC/60VDC, 10kA, Box Lugs
$19.31$19.31 -
Available Now! 
Available Now!Weg
UMBW-1C3-10
MCB, UL1077, 3-Pole, C-Curve, 10 Amp, 277/480Y VAC, 5kA, Thermal-Magnetic Miniature Circuit Breaker, IP20, UMBW Series
$28.60$28.60 -
Available Now! 
Available Now!Weg
UMBW-4C3-20
MCB, UL489, 3-Pole, C-Curve, 20 Amp, 277/480Y VAC, 125VDC, 10kA, Thermal-Magnetic Miniature Circuit Breaker, IP20, UMBW Series
$69.52$69.52 -
Noark
B1E1C1
Miniature Circuit Breaker, UL1077, 1-Pole, C-Curve, 1A, 5kA, 277VAC, Supplementary Protection
$14.30$14.30 -
Available Now! 
Available Now!Noark
B1E3D50
Miniature Circuit Breaker, UL1077, 3-Poles, D-Curve, 50A, 5kA, 480Y/277VAC, Supplementary Protection
$43.12$43.12 -
Weg
MPW80-3-U065
Manual Motor Protector, 80A, 50-65A Overload Setting Range, Trip Indication, 3-Pole, 690V, 50/60Hz, Terminal Box, Rotary Handle, IP20
$148.20$148.20 -
LS Electric
0626042463
MCB, UL489, 1-Pole, B-Curve, 4 Amp, 10kA, 277VAC, Thermal Magnetic Miniature Circuit Breaker
$24.67$24.67
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