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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
HEB3M080L
HEB3M080L
Limited Stock
From
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Siemens
80
600
HEB3M090
HEB3M090
Limited Stock
From
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Siemens
90
600
HEB3M090B
HEB3M090B
Limited Stock
From
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Siemens
90
600
HEB3M090L
HEB3M090L
Limited Stock
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Siemens
90
600
HEB3M100
HEB3M100
Limited Stock
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Siemens
100
600
HEB3M100B
HEB3M100B
Limited Stock
From
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Siemens
100
600
HEB3M100L
HEB3M100L
Limited Stock
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Siemens
100
600
HEB3M110
HEB3M110
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Siemens
110
600
HEB3M110B
HEB3M110B
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Siemens
110
600
HEB3M110L
HEB3M110L
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Siemens
110
600
HEB3M125
HEB3M125
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Siemens
125
600
HEB3M125B
HEB3M125B
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Siemens
125
600
HEB3M125L
HEB3M125L
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Siemens
125
600
HED41M015
HED41M015
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Siemens
15
277
HED41M015L
HED41M015L
Limited Stock
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Siemens
15
277
HED41M020
HED41M020
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Siemens
20
277
HED41M020L
HED41M020L
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Siemens
20
277
HED41M025
HED41M025
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Siemens
25
277
HED41M025L
HED41M025L
Limited Stock
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Siemens
25
277
HED41M030
HED41M030
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Siemens
30
277
HED41M030L
HED41M030L
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Siemens
30
277
HED41M035
HED41M035
Limited Stock
From
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Siemens
35
277
HED41M035L
HED41M035L
Limited Stock
From
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Siemens
35
277
HED41M040
HED41M040
Limited Stock
From
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Siemens
40
277
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.