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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
RFA3020
RFA3020
In Stock
From
$236.33
Westinghouse
20
600
RGH316038E
RGH316038E
In Stock
From
$12,922.49
Eaton
1600
600
RGH316038EC
RGH316038EC
In Stock
From
$8,776.53
Eaton
1600
600
RHOEBO
RHOEBO
In Stock
From
$191.77
Siemens
-
-
S1N-3P-70A
S1N-3P-70A
In Stock
From
$88.61
ABB
70
480
S1N-3P-90A
S1N-3P-90A
In Stock
From
$112.56
ABB
90
480
S1N030TL
S1N030TL
In Stock
From
$49.10
ABB
30
480
S1N060TL
S1N060TL
In Stock
From
$258.42
ABB
60
480
S1N070TL
S1N070TL
In Stock
From
$44.11
ABB
70
480
S1N100TL
S1N100TL
In Stock
From
$282.30
ABB
100
480
S201-B16
S201-B16
In Stock
From
$45.15
ABB
16
277
S201-B50
S201-B50
Limited Stock
From
Get Price
ABB
50
277
S201-B6NA
S201-B6NA
In Stock
From
$22.55
ABB
6
277
S201-C1.6
S201-C1.6
In Stock
From
$14.00
ABB
1.6
277
S201-C13NA
S201-C13NA
Limited Stock
From
Get Price
ABB
13
277
S201-C16NA
S201-C16NA
In Stock
From
$18.40
ABB
16
277
S201-C20
S201-C20
In Stock
From
$25.25
ABB
20
277
S201-C4NA
S201-C4NA
In Stock
From
$27.12
ABB
4
277
S201-D0.5
S201-D0.5
In Stock
From
$13.49
ABB
0.5
277
S201-D13
S201-D13
In Stock
From
$12.09
ABB
13
277
S201-D16
S201-D16
In Stock
From
$16.97
ABB
16
277
S201-D2
S201-D2
In Stock
From
$56.71
ABB
2
277
S201-D20
S201-D20
In Stock
From
$15.98
ABB
20
277
S201-D25
S201-D25
In Stock
From
$34.04
ABB
25
277
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.