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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
EP103ULHD32
EP103ULHD32
Limited Stock
From
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General Electric
32
277
EQ9985R
EQ9985R
Limited Stock
From
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Murray Corporation
200
240
ES-3P-10A
ES-3P-10A
Limited Stock
From
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ABB
10
600
ES-3P-15A
ES-3P-15A
Limited Stock
From
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ABB
15
600
ES-3P-20A
ES-3P-20A
Limited Stock
From
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ABB
20
600
ES-3P-25A
ES-3P-25A
Limited Stock
From
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ABB
25
600
ES-3P-30A
ES-3P-30A
Limited Stock
From
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ABB
30
600
ES-3P-35A
ES-3P-35A
Limited Stock
From
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ABB
35
600
ES-3P-40A
ES-3P-40A
Limited Stock
From
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ABB
40
600
ES-3P-5A
ES-3P-5A
Limited Stock
From
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ABB
5
600
FAZ-D4/2-NA-L
FAZ-D4/2-NA-L
Limited Stock
From
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Eaton
4
-
FAZG4-CNA
FAZG4-CNA
Limited Stock
From
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Eaton
4
480
FD3020S06
FD3020S06
Limited Stock
From
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Eaton
-
-
FD3100SL
FD3100SL
Limited Stock
From
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Eaton
100
600
FH24020AC5861
FH24020AC5861
Limited Stock
From
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Square D
-
-
FH24030AC5861
FH24030AC5861
Limited Stock
From
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Square D
-
-
FH24040AC5861
FH24040AC5861
Limited Stock
From
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Square D
-
-
FH24100AC5861
FH24100AC5861
Limited Stock
From
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Square D
-
-
FY12030B
FY12030B
Limited Stock
From
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Square D
30
120
FY12040A
FY12040A
Limited Stock
From
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Square D
40
120
FY12040B
FY12040B
Limited Stock
From
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Square D
40
120
FY12060B
FY12060B
Limited Stock
From
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Square D
60
120
G3B005
G3B005
Limited Stock
From
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ITE
5
240
G3B035
G3B035
Limited Stock
From
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ITE
35
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.