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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
3VA5445-7EC31-0AA0
3VA5445-7EC31-0AA0
In Stock
From
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Siemens
450
600
3VF3212-0JU41-0AA0-Z-A1
3VF3212-0JU41-0AA0-Z-A1
Limited Stock
From
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Siemens
-
-
3VF7111-3BK60-0AB1
3VF7111-3BK60-0AB1
Limited Stock
From
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Siemens
-
-
3VF9823-1EA01
3VF9823-1EA01
Limited Stock
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Siemens
-
-
3VL1706-1EA46-0AB1
3VL1706-1EA46-0AB1
Limited Stock
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Siemens
-
-
3VL1708-1EH43-0AA0
3VL1708-1EH43-0AA0
In Stock
From
$1,309.35
Siemens
-
-
3VL4740-1SB36-8TD1
3VL4740-1SB36-8TD1
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From
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Siemens
-
-
3VL5750-2EJ46-0AA0
3VL5750-2EJ46-0AA0
Limited Stock
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Siemens
-
-
3VT3763-2AA46-0AA0
3VT3763-2AA46-0AA0
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Siemens
-
-
3VT4200-0BQ00
3VT4200-0BQ00
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Siemens
-
-
3VT4207-0BT00
3VT4207-0BT00
Limited Stock
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Siemens
-
-
3VT7100-0BR00
3VT7100-0BR00
In Stock
From
$4,070.44
Siemens
-
-
3WL1108-2CB42-1GA2-ZS55
3WL1108-2CB42-1GA2-ZS55
Limited Stock
From
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Siemens
-
-
3WL1208-2BB43-4AN2
3WL1208-2BB43-4AN2
In Stock
From
$3,632.97
Siemens
-
-
3WL1216-2BB43-4AN2Z
3WL1216-2BB43-4AN2Z
In Stock
From
$3,365.91
Siemens
-
-
5SX22
5SX22
In Stock
From
$107.30
Siemens
2
400
5TE7101
5TE7101
Limited Stock
From
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Siemens
-
-
5TE7513
5TE7513
Limited Stock
From
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Siemens
-
-
5TE7613
5TE7613
Limited Stock
From
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Siemens
-
-
5TE7713
5TE7713
Limited Stock
From
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Siemens
-
-
5TE8411
5TE8411
Limited Stock
From
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Siemens
-
-
CLF63B110
CLF63B110
In Stock
From
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Siemens
110
600
F2B030
F2B030
In Stock
From
$9.24
ITE
30
480
F2B080
F2B080
In Stock
From
$130.64
Gould
80
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.