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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
TJD432400WL
TJD432400WL
In Stock
From
$631.42
General Electric
400
240
TJJ436200WL
TJJ436200WL
In Stock
From
$566.34
General Electric
200
600
TJK436350WL
TJK436350WL
In Stock
From
$2,562.98
General Electric
350
600
TKM31000
TKM31000
In Stock
From
$5,042.17
General Electric
1000
600
TKM31200
TKM31200
In Stock
From
$2,965.59
General Electric
1200
600
TKM3F
TKM3F
In Stock
From
$5,322.89
General Electric
1200
600
TKM836300
TKM836300
In Stock
From
$1,643.90
General Electric
300
600
TKM836600
TKM836600
In Stock
From
$1,019.22
General Electric
600
600
TKM836800
TKM836800
In Stock
From
$1,960.36
General Electric
800
600
TKM836F000
TKM836F000
In Stock
From
$1,960.36
General Electric
800
600
TQD22225X2
TQD22225X2
In Stock
From
$380.39
General Electric
225
240
TQD22Y225
TQD22Y225
In Stock
From
$989.40
General Electric
225
240
TQD32150ST1
TQD32150ST1
In Stock
From
$363.60
General Electric
150
240
TQD32175WL
TQD32175WL
In Stock
From
$417.91
General Electric
175
240
TQL1140
TQL1140
In Stock
From
$11.96
General Electric
40
240
TQL1150
TQL1150
In Stock
From
$22.97
General Electric
50
240
TQL2110
TQL2110
In Stock
From
$15.62
General Electric
10
240
TQL2120
TQL2120
In Stock
From
$17.11
General Electric
20
240
TQL2130
TQL2130
In Stock
From
$24.36
General Electric
30
240
TQL2150
TQL2150
In Stock
From
$32.10
General Electric
50
240
TQL31WY30
TQL31WY30
In Stock
From
$35.47
General Electric
30
240
TQL32030
TQL32030
In Stock
From
$23.98
General Electric
30
240
TXQB32020
TXQB32020
In Stock
From
$385.29
General Electric
20
240
B115HID
B115HID
In Stock
From
$17.50
Siemens
15
120
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.