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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
3VB78
3VB78
Limited Stock
From
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Siemens
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3VB9-787-0AA00
3VB9-787-0AA00
Limited Stock
From
Get Price
Siemens
-
-
3VE1010-2C
3VE1010-2C
In Stock
From
$45.37
Siemens
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-
3VE1020-2F
3VE1020-2F
In Stock
From
$40.60
Siemens
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3VE5201-1C500
3VE5201-1C500
Limited Stock
From
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Siemens
-
-
3VE6-201-0CT00
3VE6-201-0CT00
Limited Stock
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Siemens
-
-
3VF2214-0JS41-0AA0
3VF2214-0JS41-0AA0
In Stock
From
$112.14
Siemens
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-
3VF3111-5EN71-0AB2
3VF3111-5EN71-0AB2
In Stock
From
$632.62
Siemens
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-
3VF3113-0FJ41-0A00
3VF3113-0FJ41-0A00
In Stock
From
$632.62
Siemens
-
-
3VF3211-1FU41-0AA0
3VF3211-1FU41-0AA0
In Stock
From
$829.14
Siemens
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-
3VF4231-1DH41-0AC1
3VF4231-1DH41-0AC1
In Stock
From
$1,121.17
Siemens
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-
3VL1716-1DE33-0AA0
3VL1716-1DE33-0AA0
In Stock
From
$1,328.52
Siemens
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-
3VL2716-2AA33-0AA0
3VL2716-2AA33-0AA0
In Stock
From
$2,145.00
Siemens
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3VL3125-2GE30-0AA0
3VL3125-2GE30-0AA0
In Stock
From
$604.71
Siemens
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3VL90008AQ60
3VL90008AQ60
In Stock
From
$519.87
Siemens
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-
3VT1710-2DC36-0AA0
3VT1710-2DC36-0AA0
In Stock
From
$314.64
Siemens
-
-
3WN6361-0GB58-1KA1
3WN6361-0GB58-1KA1
Limited Stock
From
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Siemens
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-
5SG7-732
5SG7-732
Limited Stock
From
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Siemens
-
-
5SL4101-6
5SL4101-6
Limited Stock
From
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Siemens
6
230
5SL4216-8
5SL4216-8
Limited Stock
From
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Siemens
16
400
5SL6016-6MC
5SL6016-6MC
Limited Stock
From
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Siemens
16
230
5SL6110-6
5SL6110-6
In Stock
From
$9.09
Siemens
10
230
5SL6305-7
5SL6305-7
Limited Stock
From
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Siemens
4
400
5SN2302
5SN2302
Limited Stock
From
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Siemens
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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.