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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
SU203PR-K40
SU203PR-K40
In Stock
From
$48.40
ABB
-
-
TEB134010
TEB134010
In Stock
From
$358.99
ABB
10
415
TEB134020
TEB134020
In Stock
From
$358.99
ABB
20
415
THQLQ151515
THQLQ151515
In Stock
From
$66.11
ABB
15
240
THQLQ203015
THQLQ203015
In Stock
From
$68.61
ABB
30
240
THQLQ203020
THQLQ203020
In Stock
From
$65.17
ABB
30
240
Z63A
Z63A
In Stock
From
$36.57
ABB
63
480
EH-3P-100A
EH-3P-100A
In Stock
From
$36.70
ABB
100
600
EH-3P-200A
EH-3P-200A
In Stock
From
$384.88
ABB
200
600
EH-3P-225A
EH-3P-225A
In Stock
From
$107.09
ABB
225
600
ES-3P-100A
ES-3P-100A
In Stock
From
$0.02
ABB
100
600
ES-3P-150A
ES-3P-150A
In Stock
From
$0.03
ABB
150
600
ES-3P-60A
ES-3P-60A
In Stock
From
$120.10
ABB
60
600
ES-3P-90A
ES-3P-90A
In Stock
From
$171.72
ABB
90
600
JS-3P-400A-DC
JS-3P-400A-DC
In Stock
From
$233.14
ABB
400
600
LS63A
LS63A
In Stock
From
$78.57
ABB
63
415
OTEL-NF600A
OTEL-NF600A
In Stock
From
$130.19
ABB
600
600
SKHC3608L5XX
SKHC3608L5XX
In Stock
From
$9,950.02
General Electric
800
600
SKHC3608L7XX
SKHC3608L7XX
In Stock
From
$9,950.02
General Electric
800
600
SKHC3612L7XX
SKHC3612L7XX
In Stock
From
$8,470.50
General Electric
1200
600
ST201M-B40NA
ST201M-B40NA
In Stock
From
$242.57
ABB
40
277
ST203M-Z16
ST203M-Z16
Limited Stock
From
Get Price
ABB
16
277
SU203ML-K10
SU203ML-K10
In Stock
From
$224.32
ABB
-
-
SU203ML-K32
SU203ML-K32
In Stock
From
$264.80
ABB
-
-
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.