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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
NZMH4-VE800-NA
NZMH4-VE800-NA
In Stock
From
$2,073.69
Eaton
800
600
NZMH6-63/ZM6A-25-NA
NZMH6-63/ZM6A-25-NA
In Stock
From
$1,814.67
Klockner Moeller
25
600
NZMH6-63/ZM6A-50-NA
NZMH6-63/ZM6A-50-NA
In Stock
From
$3,053.85
Eaton
50
600
NZMH6-63/ZM6A-60-NA
NZMH6-63/ZM6A-60-NA
In Stock
From
$2,044.65
Klockner Moeller
60
600
NZMN2-M160
NZMN2-M160
In Stock
From
$2,249.52
Eaton
160
690
NZMN2-ME220
NZMN2-ME220
Limited Stock
From
Get Price
Eaton
220
690
NZMN3-4-AE630/400
NZMN3-4-AE630/400
Limited Stock
From
Get Price
Eaton
630
690
NZMN3-AE630
NZMN3-AE630
In Stock
From
$14,867.22
Eaton
630
690
NZMN4-AEF1000-NA
NZMN4-AEF1000-NA
In Stock
From
$7,483.51
Klockner Moeller
1000
600
NZMN4-AEF1200-NA
NZMN4-AEF1200-NA
In Stock
From
$17,434.47
Klockner Moeller
1200
600
OSMC32N1C6
OSMC32N1C6
In Stock
From
$27.22
Schneider Electric
6
440
OSMC32N3C63
OSMC32N3C63
In Stock
From
$58.17
Schneider Electric
63
440
OSMC65H1C1
OSMC65H1C1
In Stock
From
$16.61
Schneider Electric
1
480
OSMC65H1C4
OSMC65H1C4
In Stock
From
$73.25
Schneider Electric
4
480
OSMC65H2D25
OSMC65H2D25
In Stock
From
$22.04
Schneider Electric
25
480
OSMC65H3D10
OSMC65H3D10
In Stock
From
$11.07
Schneider Electric
10
480
P115GF
P115GF
In Stock
From
$62.67
ITE
15
120
P120GF
P120GF
In Stock
From
$127.11
ITE
20
120
P140
P140
In Stock
From
$40.62
ITE
40
120
P150
P150
In Stock
From
$13.99
Siemens
50
120
P2020
P2020
In Stock
From
$62.54
Siemens
20
120
P4215
P4215
In Stock
From
$66.33
ITE
15
240
PDD23G0125TFFJ
PDD23G0125TFFJ
In Stock
From
$1,350.00
Eaton
125
240
PDD23G0150TFFJ
PDD23G0150TFFJ
In Stock
From
$733.46
Eaton
150
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.