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
Amperage
Voltage
B1N1D10
B1N1D10
In Stock
From
Get Price
Noark Electric
10
240
B1N1D2
B1N1D2
In Stock
From
Get Price
Noark Electric
2
240
B1N1D3
B1N1D3
In Stock
From
Get Price
Noark Electric
3
240
B1N1D8
B1N1D8
In Stock
From
Get Price
Noark Electric
8
240
B1N2C10
B1N2C10
In Stock
From
Get Price
Noark Electric
10
240
B1N2C25
B1N2C25
In Stock
From
Get Price
Noark Electric
25
240
B1N2C5
B1N2C5
In Stock
From
Get Price
Noark Electric
5
240
B1NQ1D1
B1NQ1D1
In Stock
From
Get Price
Noark Electric
1
240
B1NQ1D10
B1NQ1D10
In Stock
From
Get Price
Noark Electric
10
240
B1NQ1D3
B1NQ1D3
In Stock
From
Get Price
Noark Electric
3
240
B1NQ1D30
B1NQ1D30
In Stock
From
Get Price
Noark Electric
30
240
AD53
AD53
In Stock
From
$4.82
Noark Electric
-
-
AD54
AD54
In Stock
From
$9.80
Noark Electric
-
-
AD55
AD55
In Stock
From
$23.03
Noark Electric
-
-
AXEA32A
AXEA32A
In Stock
From
$3.29
Noark Electric
-
-
B1H1C32
B1H1C32
In Stock
From
$22.64
Noark Electric
-
-
B1H1D25
B1H1D25
In Stock
From
$22.84
Noark Electric
-
-
B1D1C15
B1D1C15
In Stock
From
$30.12
Noark Electric
-
-
B1D1C4
B1D1C4
In Stock
From
$37.97
Noark Electric
-
-
B1H1B30
B1H1B30
In Stock
From
$23.23
Noark Electric
-
-
M2N250T3L
M2N250T3L
In Stock
From
$741.55
Noark Electric
-
-
M6N1000E3L
M6N1000E3L
In Stock
From
$2,347.92
Noark Electric
-
-
M6N1200E3LF
M6N1200E3LF
In Stock
From
$5,967.62
Noark Electric
-
-
B1E3D3
B1E3D3
Limited Stock
From
Get Price
Noark Electric
3
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.