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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
S503-K20
S503-K20
In Stock
From
$268.17
ABB
-
-
S7-H
S7-H
In Stock
From
$12,999.12
ABB
-
-
S801N-D32
S801N-D32
Limited Stock
From
Get Price
ABB
-
-
S801U-K30
S801U-K30
In Stock
From
$65.77
ABB
-
-
S801U-Z10
S801U-Z10
In Stock
From
$189.85
ABB
-
-
S802C-C10
S802C-C10
Limited Stock
From
Get Price
ABB
-
-
S802N-B10
S802N-B10
Limited Stock
From
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ABB
-
-
S802N-C32
S802N-C32
In Stock
From
$60.60
ABB
-
-
S802N-D10
S802N-D10
Limited Stock
From
Get Price
ABB
-
-
S802N-D40
S802N-D40
Limited Stock
From
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ABB
-
-
S802PV-M32
S802PV-M32
Limited Stock
From
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ABB
-
-
S802U-K10
S802U-K10
In Stock
From
$195.04
ABB
-
-
S803C-C10
S803C-C10
In Stock
From
$64.33
ABB
-
-
S803C-D32
S803C-D32
Limited Stock
From
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ABB
-
-
S803N-C10
S803N-C10
Limited Stock
From
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ABB
-
-
S803N-C20
S803N-C20
Limited Stock
From
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ABB
-
-
S803U-K60
S803U-K60
In Stock
From
$223.18
ABB
60
240
S803U-Z10
S803U-Z10
In Stock
From
$584.37
ABB
-
-
S803U-Z15
S803U-Z15
In Stock
From
$677.70
ABB
-
-
S804N-B10
S804N-B10
Limited Stock
From
Get Price
ABB
-
-
S804U-K100
S804U-K100
In Stock
From
$892.22
ABB
-
-
S951NC4
S951NC4
Limited Stock
From
Get Price
ABB
-
-
SACE S1
SACE S1
In Stock
From
$86.34
ABB
-
-
SH201-C2
SH201-C2
In Stock
From
$15.15
ABB
-
-
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.