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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
E1FED63B035
E1FED63B035
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Siemens
35
600
E1FED63B040
E1FED63B040
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Siemens
40
600
E1FED63B045
E1FED63B045
Limited Stock
From
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Siemens
45
600
E1FED63B050
E1FED63B050
Limited Stock
From
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Siemens
50
600
E1FED63B060
E1FED63B060
Limited Stock
From
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Siemens
60
600
E1FED63B070
E1FED63B070
Limited Stock
From
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Siemens
70
600
E1FED63B080
E1FED63B080
Limited Stock
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Siemens
80
600
E1FED63B090
E1FED63B090
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Siemens
90
600
E1FED63B100
E1FED63B100
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Siemens
100
600
E1FED63B110
E1FED63B110
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Siemens
110
600
E1FED63B125
E1FED63B125
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Siemens
125
600
E1SED22B025
E1SED22B025
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Siemens
25
240
E1SED22B030
E1SED22B030
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Siemens
30
240
E1SED22B035
E1SED22B035
Limited Stock
From
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Siemens
35
240
E1SED22B040
E1SED22B040
Limited Stock
From
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Siemens
40
240
E1SED22B045
E1SED22B045
Limited Stock
From
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Siemens
45
240
E1SED22B050
E1SED22B050
Limited Stock
From
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Siemens
50
240
E1SED22B060
E1SED22B060
Limited Stock
From
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Siemens
60
240
E1SED22B070
E1SED22B070
Limited Stock
From
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Siemens
70
240
E1SED22B080
E1SED22B080
Limited Stock
From
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Siemens
80
240
E1SED22B090
E1SED22B090
Limited Stock
From
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Siemens
90
240
E1SED22B100
E1SED22B100
Limited Stock
From
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Siemens
100
240
E1SED23B015
E1SED23B015
Limited Stock
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Siemens
15
240
E1SED23B020
E1SED23B020
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From
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Siemens
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.