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
27183
27183
Limited Stock
From
Get Price
Merlin Gerin
50
240
28900
28900
Limited Stock
From
Get Price
Merlin Gerin
40
690
28904
28904
Limited Stock
From
Get Price
Merlin Gerin
80
690
28908
28908
Limited Stock
From
Get Price
Merlin Gerin
100
750
28910
28910
In Stock
From
$274.41
Merlin Gerin
125
750
31107
31107
In Stock
From
$468.39
Merlin Gerin
250
750
31110
31110
In Stock
From
$9.94
Merlin Gerin
400
750
31115
31115
In Stock
From
$46.66
Merlin Gerin
630
750
60220
60220
In Stock
From
$197.25
Merlin Gerin
2
240
EZC100B3030
EZC100B3030
Limited Stock
From
Get Price
Merlin Gerin
30
690
EZC100F3030
EZC100F3030
In Stock
From
$81.66
Merlin Gerin
30
690
EZC100H3020
EZC100H3020
Limited Stock
From
Get Price
Merlin Gerin
20
690
EZC100H3040
EZC100H3040
In Stock
From
$73.82
Merlin Gerin
40
690
EZC100H3050
EZC100H3050
Limited Stock
From
Get Price
Merlin Gerin
50
690
INS125
INS125
In Stock
From
$73.55
Merlin Gerin
125
750
LV430629
LV430629
In Stock
From
$514.80
Merlin Gerin
160
690
NFHLE36200
NFHLE36200
In Stock
From
$2,305.62
Schneider Electric
200
690
NFHLE36250
NFHLE36250
In Stock
From
$3,359.36
Merlin Gerin
250
690
NFNFE46100N10
NFNFE46100N10
In Stock
From
$407.93
Merlin Gerin
100
690
NFNFE46160N16
NFNFE46160N16
In Stock
From
$643.67
Merlin Gerin
160
690
NFNLE46160N16
NFNLE46160N16
In Stock
From
$2,058.65
Square D
160
690
NJLFE36630F63
NJLFE36630F63
Limited Stock
From
Get Price
Merlin Gerin
630
690
NJNLE46400E20
NJNLE46400E20
In Stock
From
$3,304.09
Schneider Electric
400
690
NRJF36200CU44A
NRJF36200CU44A
In Stock
From
$11,077.14
Merlin Gerin
2000
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.