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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
PDG46M0700TFAJ
PDG46M0700TFAJ
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Eaton
-
-
PDG46M0700TFAK
PDG46M0700TFAK
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Eaton
-
-
PDG46M0700TFAL
PDG46M0700TFAL
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Eaton
-
-
PDG46M0700TFAN
PDG46M0700TFAN
Limited Stock
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Eaton
-
-
PDG46M0800TFAJ
PDG46M0800TFAJ
Limited Stock
From
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Eaton
-
-
PDG46M0800TFAK
PDG46M0800TFAK
Limited Stock
From
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Eaton
-
-
PDG46M0800TFAL
PDG46M0800TFAL
Limited Stock
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Eaton
-
-
PDG46M0800TFAN
PDG46M0800TFAN
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Eaton
-
-
PJF36120CU33AABJK
PJF36120CU33AABJK
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From
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Square D
-
600
PJF36120CU43AACJK
PJF36120CU43AACJK
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Square D
-
600
QBHW20100
QBHW20100
Limited Stock
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Eaton
100
240
RC3830RT
RC3830RT
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Zinsco
-
-
SU201ML-K20
SU201ML-K20
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ABB
-
-
SU203PR-K60
SU203PR-K60
Limited Stock
From
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ABB
-
-
TEB124050
TEB124050
Limited Stock
From
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ABB
50
415
3RV2321-4CC10
3RV2321-4CC10
Limited Stock
From
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Siemens
-
-
3VA5195-6ED36-0AA0
3VA5195-6ED36-0AA0
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From
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Siemens
-
-
5SY4214-7
5SY4214-7
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Siemens
-
-
5SY4632-6
5SY4632-6
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Siemens
-
-
SACET2H100
SACET2H100
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-
-
SU201M-C63
SU201M-C63
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ABB
-
-
140U-16C3-C70M
140U-16C3-C70M
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From
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Allen-Bradley
-
-
140U-16C3-D12-S
140U-16C3-D12-S
Limited Stock
From
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Allen-Bradley
-
-
1492-G150
1492-G150
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Allen-Bradley
-
-
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.