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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
S203-K10
S203-K10
In Stock
From
$206.34
ABB
10
480
S203-K13
S203-K13
In Stock
From
$23.14
ABB
13
480
S203-K16
S203-K16
In Stock
From
$229.64
ABB
16
480
S203-K25
S203-K25
Limited Stock
From
Get Price
ABB
25
480
S203-K4
S203-K4
In Stock
From
$51.24
ABB
4
480
S203-K5
S203-K5
In Stock
From
$100.06
ABB
5
480
S204-C63
S204-C63
In Stock
From
$120.72
ABB
63
480
SHLD6B500LSIG
SHLD6B500LSIG
In Stock
From
$8,061.14
Siemens
500
600
SLA3400
SLA3400
In Stock
From
$1,500.50
Square D
400
750
TECL36007
TECL36007
In Stock
From
$809.70
General Electric
7
600
TECL36015
TECL36015
In Stock
From
$789.35
General Electric
15
600
TECL36050
TECL36050
In Stock
From
$551.10
General Electric
50
600
TECL36100
TECL36100
In Stock
From
$557.10
General Electric
100
600
TECL36150
TECL36150
In Stock
From
$641.69
General Electric
150
600
THLK2125
THLK2125
In Stock
From
$125.29
General Electric
125
240
THQL1115GFTP
THQL1115GFTP
In Stock
From
$34.46
General Electric
15
120
THQP115
THQP115
In Stock
From
$7.16
General Electric
15
240
TQ1115
TQ1115
In Stock
From
$16.62
General Electric
15
120
TQ1120
TQ1120
In Stock
From
$43.12
General Electric
20
120
TQ1130
TQ1130
In Stock
From
$45.29
General Electric
30
120
TQ2150
TQ2150
In Stock
From
$35.59
General Electric
50
240
UBIF2125NB
UBIF2125NB
In Stock
From
$571.77
Connecticut Electric
125
120
UBIF40N
UBIF40N
In Stock
From
$24.37
Connecticut Electric
40
240
UBITBFP1502
UBITBFP1502
In Stock
From
$378.05
Connecticut 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.