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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
JB1-B3-A-10-3
JB1-B3-A-10-3
In Stock
From
$23.35
Eaton
-
-
JB1-B3-A-20-3
JB1-B3-A-20-3
In Stock
From
$22.51
Eaton
-
-
JB2S-A8-A-0020-10-E
JB2S-A8-A-0020-10-E
In Stock
From
$186.40
Eaton
-
-
JC2S-Z80-1
JC2S-Z80-1
In Stock
From
$164.09
Eaton
-
-
EHD3050S06
EHD3050S06
In Stock
From
Get Price
Eaton
-
-
KS320350A
KS320350A
In Stock
From
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Cutler Hammer
-
240
LD2400F
LD2400F
In Stock
From
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Eaton
-
-
504C747G27
504C747G27
In Stock
From
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Westinghouse
-
-
CSK3150
CSK3150
In Stock
From
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Challenger
-
-
EHD3070LS05
EHD3070LS05
In Stock
From
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Eaton
-
-
GH3-Z13-24
GH3-Z13-24
Limited Stock
From
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Eaton
-
-
GUAB47 WOD
GUAB47 WOD
In Stock
From
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Eaton
-
-
GUSC3110 10
GUSC3110 10
In Stock
From
$1,894.12
Eaton
-
-
CH250CHF250
CH250CHF250
In Stock
From
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Eaton
-
-
FB3035VL
FB3035VL
In Stock
From
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Westinghouse
-
-
FB3100MR
FB3100MR
In Stock
From
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Westinghouse
-
-
BRN115AFCS
BRN115AFCS
Limited Stock
From
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Eaton
15
120
BAB1030V
BAB1030V
Limited Stock
From
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Eaton
30
240
BAB2035HT
BAB2035HT
Limited Stock
From
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Eaton
35
240
BAB2040HT
BAB2040HT
Limited Stock
From
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Eaton
40
240
BAB2045HT
BAB2045HT
Limited Stock
From
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Eaton
45
240
BAB2050HT
BAB2050HT
Limited Stock
From
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Eaton
50
240
BAB2060HT
BAB2060HT
Limited Stock
From
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Eaton
60
240
BAB2125S
BAB2125S
Limited Stock
From
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Eaton
125
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.