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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
B1E1D16
B1E1D16
Limited Stock
From
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Noark Electric
16
277
B1E1D2
B1E1D2
Limited Stock
From
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Noark Electric
2
277
B1E1D20
B1E1D20
Limited Stock
From
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Noark Electric
20
277
B1E1D25
B1E1D25
Limited Stock
From
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Noark Electric
25
277
B1E1D3
B1E1D3
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Noark Electric
3
277
B1E1D30
B1E1D30
Limited Stock
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Noark Electric
30
277
B1E1D32
B1E1D32
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Noark Electric
32
277
B1E1D35
B1E1D35
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Noark Electric
35
277
B1E1D4
B1E1D4
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Noark Electric
4
277
B1E1D40
B1E1D40
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Noark Electric
40
277
B1E1D5
B1E1D5
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Noark Electric
5
277
B1E1D50
B1E1D50
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Noark Electric
50
277
B1E1D6
B1E1D6
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Noark Electric
6
277
B1E1D60
B1E1D60
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Noark Electric
60
277
B1E1D63
B1E1D63
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Noark Electric
63
277
B1E1D8
B1E1D8
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From
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Noark Electric
8
277
B1E1P80
B1E1P80
Limited Stock
From
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Noark Electric
80
277
B1E2B1
B1E2B1
Limited Stock
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Noark Electric
1
480
B1E2B1.6
B1E2B1.6
Limited Stock
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Noark Electric
1.6
480
B1E2B10
B1E2B10
Limited Stock
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Noark Electric
10
480
B1E2B15
B1E2B15
Limited Stock
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Noark Electric
15
480
B1E2B16
B1E2B16
Limited Stock
From
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Noark Electric
16
480
B1E2B2
B1E2B2
Limited Stock
From
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Noark Electric
2
480
B1E2B20
B1E2B20
Limited Stock
From
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Noark Electric
20
480
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.