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Sprecher and Schuh
L9-6/1/C
Miniature Circuit Breaker, C-Curve, 6 Amp, 277VAC/48VDC, 10kA, 1-Pole, UL489 / CSA / CE, IP20
$82.61$82.61 -
Weg
MPW100-3-U100
Manual Motor Protector, 100A, 80-100A Overload Setting Range, 3-Pole, 690V, 50/60Hz, Terminal Box, IP20
$331.92$331.92 -
Available Now! 
Available Now!Weg
MPW18-3-D004
Manual Motor Protector, 18A, 0.25-0.4A Overload Setting Range, 3-Pole, 690V, 50/60Hz, On/Off Pushbutton, Screw Terminal, IP20
$44.72$44.72 -
Weg
MPW18-3-U010
Manual Motor Protector, 18A, 6.3-10A Overload Setting Range, 3-Pole, 690V, 50/60Hz, On/Off Pushbutton, Screw Terminal, IP20
$57.63$57.63 -
IDEC
NH1S-3100-10AA
Circuit Protector, 3-Pole, 10A, Series Trip, without Auxiliary Contact, without Inertia delay, tab terminal
$69.26$69.26 -
$370.56$370.56 -
Weg
UBW225N-FTU150-3A
MCCB, 150A@480VAC, 35kA IC, with Lugs, 3-Pole, UL489, Fixed Thermal & Magnetic
$595.20$595.20 -
Weg
UBW400N-FTU300-3A
MCCB, 300A@480VAC, 35kA IC, with Lugs, 3-Pole, UL489, Fixed Thermal & Magnetic
$1,152.00$1,152.00 -
Weg
UBW600H-FTU600-3A
MCCB, 600A@480VAC, 65kA IC, with Lugs, 3-Pole, UL489, Fixed Thermal & Magnetic
$2,688.00$2,688.00 -
Available Now! 
Available Now!Weg
UMBW-1D2-6
MCB, UL1077, 2-Pole, D-Curve, 6 Amp, 277/480Y VAC, 5kA, Thermal-Magnetic Miniature Circuit Breaker, IP20, UMBW Series
$13.61$13.61 -
Weg
UMBW-4D1-60
MCB, UL489, 1-Pole, D-Curve, 60 Amp, 120VAC/60VDC, 10kA, Thermal-Magnetic Miniature Circuit Breaker, IP20, UMBW Series
$24.91$24.91 -
Weg
UMBW-4D2-50
MCB, UL489, 2-Pole, D-Curve, 50 Amp, 277/480VAC, 125VDC, 10kA, Thermal-Magnetic Miniature Circuit Breaker, IP20, UMBW Series
$50.29$50.29
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