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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
THKMA836800
THKMA836800
In Stock
From
$1,138.25
General Electric
800
600
THKMA836800WL
THKMA836800WL
In Stock
From
$3,450.24
General Electric
800
600
THKS4608
THKS4608
In Stock
From
$3,186.00
General Electric
800
600
THKS4608GA3
THKS4608GA3
In Stock
From
$4,106.45
General Electric
800
600
THKS4612
THKS4612
In Stock
From
$1,238.63
General Electric
1200
600
THKS4612G
THKS4612G
In Stock
From
$2,950.00
General Electric
1200
600
THKS4612GA3
THKS4612GA3
In Stock
From
$5,047.58
General Electric
1200
600
THLC134100
THLC134100
In Stock
From
$537.23
General Electric
100
480
THLC136020
THLC136020
In Stock
From
$476.50
General Electric
20
600
THLC234200
THLC234200
In Stock
From
$898.74
General Electric
200
480
THLC436400
THLC436400
In Stock
From
$2,036.62
General Electric
400
600
THQB1130GF
THQB1130GF
In Stock
From
$46.77
General Electric
30
120
THQB21WY30
THQB21WY30
In Stock
From
$71.40
General Electric
30
240
THQB3120
THQB3120
In Stock
From
$23.09
General Electric
20
240
THQB31WY20
THQB31WY20
In Stock
From
$126.21
General Electric
20
240
THQC1115
THQC1115
In Stock
From
$8.83
General Electric
15
240
THQC1115GF
THQC1115GF
In Stock
From
$74.85
General Electric
15
120
THQC1130GFT
THQC1130GFT
In Stock
From
$129.54
General Electric
30
120
THQC21100
THQC21100
In Stock
From
$240.64
General Electric
100
240
THQD32100ST1
THQD32100ST1
In Stock
From
$328.73
General Electric
100
240
THQD32100X2
THQD32100X2
In Stock
From
$596.08
General Electric
100
240
THQD32125X2
THQD32125X2
In Stock
From
$398.69
General Electric
125
240
THQD32150
THQD32150
In Stock
From
$537.32
General Electric
150
240
THQD32150X2
THQD32150X2
In Stock
From
$868.26
General Electric
150
240
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.