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Molded Case Circuit Breaker

For circuit breaker systems in commercial and industrial facilities, molded case circuit breakers are among the most widely used components for reliable overcurrent protection and electrical distribution. Molded case circuit breakers provide automatic circuit interruption during overload or short circuit conditions, protecting electrical systems and equipment from damage while enabling manual switching control. Electrical.com carries an extensive selection of molded case circuit breakers from all major manufacturers, including new, used, surplus, and re-certified options. These components are designed to meet the diverse needs of commercial buildings, manufacturing facilities, data centers, and industrial power distribution applications.
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Part Number
PRICE
Manufacturer
Amperage
Voltage
PL703U-K4
PL703U-K4
Limited Stock
From
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ABB
4
240
PL703U-K40
PL703U-K40
Limited Stock
From
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ABB
40
240
PL703U-K70R
PL703U-K70R
Limited Stock
From
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ABB
70
240
PL703U-K8
PL703U-K8
Limited Stock
From
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ABB
8
240
PL703U-K80R
PL703U-K80R
Limited Stock
From
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ABB
80
240
PL703U-K90R
PL703U-K90R
Limited Stock
From
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ABB
90
240
PLU703M-K40
PLU703M-K40
Limited Stock
From
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ABB
-
-
Q135HH00S07
Q135HH00S07
Limited Stock
From
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Siemens
35
120
Q160HH00S07
Q160HH00S07
Limited Stock
From
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Siemens
60
120
Q160HH01
Q160HH01
Limited Stock
From
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Siemens
60
120
QC-35-TB
QC-35-TB
Limited Stock
From
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Thomas & Betts
35
240
QC2015D
QC2015D
Limited Stock
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Cutler Hammer
15
240
QC2020D
QC2020D
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From
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Cutler Hammer
20
240
QC2025D
QC2025D
Limited Stock
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Cutler Hammer
25
240
QC2035D
QC2035D
Limited Stock
From
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Cutler Hammer
35
240
QC2050D
QC2050D
Limited Stock
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Cutler Hammer
50
240
QC2060D
QC2060D
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Cutler Hammer
60
240
QCD1025
QCD1025
Limited Stock
From
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Cutler Hammer
25
240
QCF1025T
QCF1025T
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Cutler Hammer
25
240
QCFH1015T
QCFH1015T
Limited Stock
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Cutler Hammer
15
240
QCFH1020T
QCFH1020T
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From
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Cutler Hammer
20
240
QCGF1025W2
QCGF1025W2
Limited Stock
From
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Cutler Hammer
25
120
QCR2010P
QCR2010P
Limited Stock
From
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Cutler Hammer
10
240
QCR2020P
QCR2020P
Limited Stock
From
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Cutler Hammer
20
240
Popular Molded Case Circuit Breaker Manufacturers

Electrical.com stocks the largest inventory of molded case circuit breakers in the world, with over 1 million square feet of new, used, surplus, and re-certified MCCBs available for immediate shipment. From standard thermal-magnetic breakers to electronic trip units across all amperage ratings, we have what you need when others say no. Our comprehensive molded case circuit breaker inventory spans all voltage and current ratings, frame sizes, and interrupting capacities from all major manufacturers including current production and discontinued models from legacy suppliers. Available in new factory condition, surplus stock, and re-certified options‚ All backed by our standard 2-year Electrical.com warranty. Our molded case circuit breakers serve critical applications across commercial buildings, industrial facilities, manufacturing plants, data centers, healthcare facilities, distribution panels, motor control centers, switchboards, and power distribution systems.


Whether you're maintaining legacy equipment with obsolete MCCB models or sourcing current production breakers for new installations and retrofits, our 40+ warehouse locations across the US and Canada ensure rapid delivery to minimize your downtime. Need molded case circuit breakers now? Call 877-999-7077 or email [email protected]. With same-day shipping available and the right parts ready to ship from our nearest warehouse location, Electrical.com gets your operations back online fast. We can say yes when others have to say no.