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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
2478910000
2478910000
In Stock
From
$103.65
Weidmuller
2478940000
2478940000
In Stock
From
$83.34
Weidmuller
2478950000
2478950000
In Stock
From
$131.31
Weidmuller
2479190000
2479190000
In Stock
From
$232.40
Weidmuller
2479210000
2479210000
In Stock
From
$197.78
Weidmuller
2479360000
2479360000
In Stock
From
$26.19
Weidmuller
2479430000
2479430000
In Stock
From
$32.96
Weidmuller
2479680000
2479680000
In Stock
From
$74.32
Weidmuller
2479900000
2479900000
In Stock
From
$91.81
Weidmuller
2479940000
2479940000
In Stock
From
$97.37
Weidmuller
2480050000
2480050000
In Stock
From
$27.14
Weidmuller
2480080000
2480080000
In Stock
From
$45.73
Weidmuller
2480130000
2480130000
In Stock
From
$49.99
Weidmuller
2480150000
2480150000
In Stock
From
$39.63
Weidmuller
2480290000
2480290000
In Stock
From
$56.47
Weidmuller
2480450000
2480450000
In Stock
From
$67.57
Weidmuller
2480460000
2480460000
In Stock
From
$74.32
Weidmuller
2480480000
2480480000
In Stock
From
$99.44
Weidmuller
2480670000
2480670000
In Stock
From
$99.44
Weidmuller
2480680000
2480680000
In Stock
From
$99.44
Weidmuller
2480710000
2480710000
In Stock
From
$103.85
Weidmuller
2480770000
2480770000
In Stock
From
$35.03
Weidmuller
2480880000
2480880000
In Stock
From
$32.81
Weidmuller
2480930000
2480930000
In Stock
From
$31.91
Weidmuller
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.