1. Home / 
  2. All Categories / 
  3. Circuit Breaker / 
  4. Molded Case Circuit Breaker

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.
SORT BY
Part Number
PRICE
Manufacturer
2477970000
2477970000
In Stock
From
$345.33
Weidmuller
2477980000
2477980000
In Stock
From
$37.91
Weidmuller
2478000000
2478000000
In Stock
From
$54.04
Weidmuller
2478040000
2478040000
In Stock
From
$91.48
Weidmuller
2478080000
2478080000
In Stock
From
$115.66
Weidmuller
2478110000
2478110000
In Stock
From
$151.99
Weidmuller
2478150000
2478150000
In Stock
From
$160.10
Weidmuller
2478200000
2478200000
In Stock
From
$75.44
Weidmuller
2478210000
2478210000
In Stock
From
$73.31
Weidmuller
2478220000
2478220000
In Stock
From
$140.54
Weidmuller
2478250000
2478250000
In Stock
From
$140.72
Weidmuller
2478340000
2478340000
In Stock
From
$105.58
Weidmuller
2478370000
2478370000
In Stock
From
$190.11
Weidmuller
2478400000
2478400000
In Stock
From
$170.14
Weidmuller
2478430000
2478430000
In Stock
From
$120.57
Weidmuller
2478440000
2478440000
In Stock
From
$110.90
Weidmuller
2478450000
2478450000
In Stock
From
$209.62
Weidmuller
2478540000
2478540000
In Stock
From
$27.92
Weidmuller
2478580000
2478580000
In Stock
From
$75.53
Weidmuller
2478590000
2478590000
In Stock
From
$94.99
Weidmuller
2478720000
2478720000
In Stock
From
$54.12
Weidmuller
2478750000
2478750000
In Stock
From
$72.49
Weidmuller
2478860000
2478860000
In Stock
From
$141.08
Weidmuller
2478900000
2478900000
In Stock
From
$402.30
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.