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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.
SORT BY
Part Number
PRICE
Manufacturer
Amperage
Voltage
NA125
NA125
In Stock
From
$159.67
Federal Pacific
25
120
NA130
NA130
In Stock
From
$16.47
American
30
120
NA140
NA140
In Stock
From
$8.50
American
40
120
NA150
NA150
In Stock
From
$12.68
American
50
120
NA215
NA215
In Stock
From
$38.24
American
15
240
NA25
NA25
In Stock
From
$13.41
Federal Pacific
25
120
NA260
NA260
In Stock
From
$90.97
Federal Pacific
60
240
NA270
NA270
In Stock
From
$252.49
American
70
240
NA280
NA280
In Stock
From
$301.60
American
80
240
NA2P100
NA2P100
In Stock
From
$339.58
American
100
240
NA2P125
NA2P125
In Stock
From
$674.74
American
125
240
NA2P70
NA2P70
In Stock
From
$93.58
Federal Pacific
70
240
NA2P80
NA2P80
In Stock
From
$238.41
American
80
240
NA30
NA30
In Stock
From
$21.11
American
30
120
NA3100-FLAT-TOP
NA3100-FLAT-TOP
In Stock
From
$357.86
Federal Pacific
100
240
NA315
NA315
In Stock
From
$63.23
American
15
240
NA315-FLAT-TOP
NA315-FLAT-TOP
In Stock
From
$67.61
American
15
240
NA320
NA320
In Stock
From
$76.99
Federal Pacific
20
240
NA320-FLAT-TOP
NA320-FLAT-TOP
In Stock
From
$60.86
American
20
240
NA330
NA330
In Stock
From
$88.02
American
30
240
NA330-FLAT-TOP
NA330-FLAT-TOP
In Stock
From
$105.05
American
30
240
NA335
NA335
In Stock
From
$284.88
Federal Pacific
35
240
NA335-FLAT-TOP
NA335-FLAT-TOP
In Stock
From
$225.18
American
35
240
NA340
NA340
In Stock
From
$109.98
Federal Pacific
40
240
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.