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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
NGB3B025
NGB3B025
In Stock
From
$743.45
Siemens
25
600
NGB3B060
NGB3B060
In Stock
From
$461.01
Siemens
60
600
NGB3B060B
NGB3B060B
In Stock
From
$362.02
Siemens
60
600
NGB3B080
NGB3B080
In Stock
From
$579.76
Siemens
80
600
NGB3B100
NGB3B100
In Stock
From
$592.89
Siemens
100
600
NGB3B110
NGB3B110
In Stock
From
$527.55
Siemens
110
600
NGC308036E
NGC308036E
In Stock
From
$15,766.05
Eaton
-
-
NGC308036EC
NGC308036EC
In Stock
From
$4,460.02
Eaton
-
-
NGG2B020L
NGG2B020L
In Stock
From
$250.41
Siemens
20
600
NGG2B050
NGG2B050
In Stock
From
$196.43
Siemens
50
600
NHGF36015TW
NHGF36015TW
Limited Stock
From
Get Price
Schneider Electric
15
480
NHGF36060TW
NHGF36060TW
In Stock
From
$703.36
Square D
60
480
NHL361200
NHL361200
In Stock
From
$9,914.40
Square D
1200
600
NJG3B400
NJG3B400
In Stock
From
$2,676.32
Siemens
400
600
NJG3B400L
NJG3B400L
In Stock
From
$5,535.25
Siemens
400
600
NJHL36000S40
NJHL36000S40
In Stock
From
$2,043.30
Schneider Electric
400
600
NJJ231400
NJJ231400
In Stock
From
$438.75
Federal Pacific
400
240
NJL631150
NJL631150
In Stock
From
$335.26
Federal Pacific
150
600
NJL631175R
NJL631175R
In Stock
From
$2,356.38
American
175
600
NJL631200R
NJL631200R
In Stock
From
$1,084.07
Federal Pacific
200
600
NJL631225
NJL631225
In Stock
From
$505.72
Federal Pacific
225
600
NJL631250
NJL631250
In Stock
From
$1,342.63
Federal Pacific
250
600
NJL631300
NJL631300
In Stock
From
$591.47
American
300
600
NJL631350
NJL631350
In Stock
From
$773.28
Federal Pacific
350
600
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.