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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
ED21M090
ED21M090
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Siemens
90
120
ED21M090L
ED21M090L
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Siemens
90
120
ED21M100
ED21M100
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Siemens
100
120
ED21M100L
ED21M100L
Limited Stock
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Siemens
100
120
ED22B015MX
ED22B015MX
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Siemens
15
240
ED22B020MX
ED22B020MX
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Siemens
20
240
ED22B025MX
ED22B025MX
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Siemens
25
240
ED22B030MX
ED22B030MX
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Siemens
30
240
ED22B035MX
ED22B035MX
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Siemens
35
240
ED22B040MX
ED22B040MX
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Siemens
40
240
ED22B045
ED22B045
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Siemens
45
240
ED22B045MX
ED22B045MX
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Siemens
45
240
ED22B050MX
ED22B050MX
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Siemens
50
240
ED22B060MX
ED22B060MX
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Siemens
60
240
ED22B070MX
ED22B070MX
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Siemens
70
240
ED22B080MX
ED22B080MX
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Siemens
80
240
ED22B090MX
ED22B090MX
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Siemens
90
240
ED22B100MX
ED22B100MX
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Siemens
100
240
ED22M015L
ED22M015L
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Siemens
15
240
ED22M020
ED22M020
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Siemens
20
240
ED22M020L
ED22M020L
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Siemens
20
240
ED22M025
ED22M025
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From
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Siemens
25
240
ED22M025L
ED22M025L
Limited Stock
From
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Siemens
25
240
ED22M030
ED22M030
Limited Stock
From
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Siemens
30
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.