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LS Electric
0627057063
MCB, UL489, 2-Pole, D-Curve, 30 Amp, 10kA, 240VAC, Thermal Magnetic Miniature Circuit Breaker
$49.76$49.76 -
LS Electric
0628034463
MCB, UL1077, 3-Pole, D-Curve, 63 Amp, 6kA, 480Y/277VAC, Thermal Magnetic Miniature Circuit Breaker
$44.17$44.17 -
Available Now! 
Available Now!ABL Sursum
1D4UR
Circuit Breaker, 1-Pole, D-Curve, 4 Amp, UL1077, 277VAC, 10kA, Supplementary Protection
$15.76$15.76 -
$59.22$59.22 -
$56.18$56.18 -
Sprecher and Schuh
L8-7/1/D
Circuit Breaker, Supplementary Protector, D-Curve, 7 Amp, 277VAC/48VDC, 10kA, 1-Pole, UL1077 / NFPA79 / CSA / CE, IP20
$51.90$51.90 -
LS Electric
0626037163
MCB, UL1077, 1-Pole, D-Curve, 3 Amp, 6kA, 277VAC, Thermal Magnetic Miniature Circuit Breaker
$9.90$9.90 -
LS Electric
0627043463
MCB, UL1077, 2-Pole, D-Curve, 4 Amp, 6kA, 480Y/277VAC, Thermal Magnetic Miniature Circuit Breaker
$21.20$21.20 -
ABL Sursum
1D1UR
Circuit Breaker, 1-Pole, D-Curve, 1 Amp, UL1077, 277VAC, 10kA, Supplementary Protection
$15.76$15.76 -
ABL Sursum
1D3UR
Circuit Breaker, 1-Pole, D-Curve, 3 Amp, UL1077, 277VAC, 10kA, Supplementary Protection
$15.76$15.76 -
Noark
B1D1D10
Miniature Circuit Breaker, UL489, 1-Pole, D-Curve, 10 Amp, 10kA, 125VDC, Box Lug, B1D Series
$29.83$29.83 -
$23.73$23.73
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