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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
Q2430-200
Q2430-200
Limited Stock
From
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Zinsco
20
240
Q243015D
Q243015D
Limited Stock
From
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Zinsco
15
240
Q243020D
Q243020D
Limited Stock
From
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Zinsco
20
240
Q243030D
Q243030D
Limited Stock
From
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Zinsco
30
240
Q243040D
Q243040D
Limited Stock
From
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Zinsco
40
240
Q243060D
Q243060D
Limited Stock
From
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Zinsco
60
240
Q243070D
Q243070D
Limited Stock
From
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Zinsco
70
240
R3825
R3825
Limited Stock
From
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Zinsco
25
240
HAGF115
HAGF115
Limited Stock
From
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Challenger
15
120
LQ15N
LQ15N
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Zinsco
15
240
LQ20N
LQ20N
Limited Stock
From
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Zinsco
20
240
QC-80
QC-80
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Thomas & Betts
80
240
QCAL025
QCAL025
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Zinsco
25
240
QCAL035
QCAL035
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Zinsco
35
240
QCAL220
QCAL220
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Zinsco
20
240
QCAL230
QCAL230
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Sylvania
30
240
QFL22100
QFL22100
Limited Stock
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Sylvania
100
240
QFL22100LL
QFL22100LL
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From
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Sylvania
100
240
QFL22150LL
QFL22150LL
Limited Stock
From
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Zinsco
150
240
QFL22175LL
QFL22175LL
Limited Stock
From
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Zinsco
175
240
QFL22200LL
QFL22200LL
Limited Stock
From
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Zinsco
200
240
R38AL-1515
R38AL-1515
Limited Stock
From
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Zinsco
15
240
R38AL-1520
R38AL-1520
Limited Stock
From
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Zinsco
20
240
R38AL-2015
R38AL-2015
Limited Stock
From
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Zinsco
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.