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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
SMD6B800LSI
SMD6B800LSI
In Stock
From
$4,853.27
Siemens
800
600
SND69100ANT
SND69100ANT
In Stock
From
$3,370.89
Siemens
1000
600
SND69120A
SND69120A
In Stock
From
$4,853.77
Siemens
1200
600
SND69120AG
SND69120AG
In Stock
From
$6,423.84
Siemens
1200
600
SND69120ANGT
SND69120ANGT
In Stock
From
$6,423.84
Siemens
1200
600
SND69120ANGTH
SND69120ANGTH
In Stock
From
$6,423.84
Siemens
1200
600
SND69120ANT
SND69120ANT
In Stock
From
$3,732.85
Siemens
1200
600
SND6A120LI
SND6A120LI
In Stock
From
$4,958.66
Siemens
1200
600
SND6B120LSIG
SND6B120LSIG
In Stock
From
$15,172.88
Siemens
1200
600
STD63F3200
STD63F3200
In Stock
From
$23,508.45
Siemens
3200
600
T1B020TL-1
T1B020TL-1
In Stock
From
$67.91
ABB
20
347
T1N015TL
T1N015TL
In Stock
From
$324.84
ABB
15
600
T1N030TL
T1N030TL
In Stock
From
$364.42
ABB
30
600
T1N040TL
T1N040TL
In Stock
From
$94.92
ABB
40
600
T1N050TL
T1N050TL
In Stock
From
$683.97
ABB
50
600
T1N060TL
T1N060TL
In Stock
From
$329.41
ABB
60
600
T1N100TL
T1N100TL
In Stock
From
$800.27
ABB
100
600
T2H015TW
T2H015TW
In Stock
From
$359.37
ABB
15
480
T2H030TW
T2H030TW
In Stock
From
$1,131.95
ABB
30
480
T2S100MW
T2S100MW
In Stock
From
$632.37
ABB
100
480
T2S100TW
T2S100TW
In Stock
From
$1,866.77
ABB
100
480
T3N175TW
T3N175TW
In Stock
From
$632.18
ABB
175
600
T3N200TW
T3N200TW
In Stock
From
$839.80
ABB
200
600
T4H250TW
T4H250TW
In Stock
From
$1,995.42
ABB
250
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.