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
HQNB3050
HQNB3050
In Stock
From
$40.10
Cutler Hammer
50
240
PB32000N
PB32000N
In Stock
From
$663.11
Cutler Hammer
2000
600
01A416G24
01A416G24
In Stock
From
$494.10
Westinghouse
100
600
1310860
1310860
In Stock
From
$701.22
Westinghouse
70
600
1310861
1310861
In Stock
From
$738.80
Westinghouse
90
600
1310862
1310862
In Stock
From
$783.94
Westinghouse
100
600
1310863
1310863
In Stock
From
$32.75
Westinghouse
125
600
1310864
1310864
In Stock
From
$624.10
Westinghouse
150
600
1310865
1310865
In Stock
From
$371.21
Westinghouse
175
600
1310866
1310866
In Stock
From
$597.08
Westinghouse
200
600
1310867
1310867
In Stock
From
$786.32
Westinghouse
225
600
1310878
1310878
In Stock
From
$779.36
Westinghouse
70
600
1310880
1310880
In Stock
From
Get Price
Westinghouse
100
600
1310881
1310881
In Stock
From
Get Price
Westinghouse
125
600
1310882
1310882
In Stock
From
$520.51
Westinghouse
150
600
1310883
1310883
In Stock
From
$696.88
Westinghouse
175
600
1310885
1310885
In Stock
From
$722.00
Westinghouse
225
600
1313524
1313524
In Stock
From
$32.75
Westinghouse
125
600
1313525
1313525
In Stock
From
$624.10
Westinghouse
150
600
1313526
1313526
In Stock
From
$371.21
Westinghouse
175
600
1313527
1313527
In Stock
From
$597.08
Westinghouse
200
600
1313528
1313528
In Stock
From
$786.32
Westinghouse
225
600
1313529
1313529
In Stock
From
Get Price
Westinghouse
250
600
1313531
1313531
In Stock
From
$2,323.81
Westinghouse
300
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.