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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
5925-01-303-8381
5925-01-303-8381
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Eaton
150
500
5925-01-305-6194
5925-01-305-6194
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Eaton
175
500
5925-01-306-0120
5925-01-306-0120
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Eaton
225
500
5925-01-330-7615
5925-01-330-7615
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Eaton
160
500
5925-01-331-8636
5925-01-331-8636
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Eaton
50
500
5925-01-339-4839
5925-01-339-4839
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Eaton
50
500
5925-01-339-4840
5925-01-339-4840
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Eaton
25
500
5925-01-345-3653
5925-01-345-3653
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Eaton
250
500
5925-01-356-4514
5925-01-356-4514
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Eaton
400
500
5925-01-356-4518
5925-01-356-4518
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Eaton
400
500
5925-01-359-1968
5925-01-359-1968
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Eaton
15
500
5925-01-359-1969
5925-01-359-1969
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Eaton
75
500
5925-01-360-5605
5925-01-360-5605
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Eaton
400
500
5925-01-360-8673
5925-01-360-8673
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Eaton
125
500
5925-01-378-1838
5925-01-378-1838
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Eaton
225
500
5925-01-415-4638
5925-01-415-4638
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Eaton
225
500
5925-01-415-4639
5925-01-415-4639
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Eaton
250
500
5925-01-434-3687
5925-01-434-3687
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Eaton
250
500
5925-01-437-4675
5925-01-437-4675
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Eaton
150
500
5925-01-440-3934
5925-01-440-3934
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Eaton
400
500
5925-01-452-0162
5925-01-452-0162
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Eaton
250
500
5925-01-455-8639
5925-01-455-8639
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Eaton
25
500
5925-01-458-3739
5925-01-458-3739
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Eaton
15
500
5925-01-461-1628
5925-01-461-1628
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Eaton
20
500
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.