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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
UBIF0220N
UBIF0220N
In Stock
From
$62.40
Connecticut Electric
20
240
UBIF20N
UBIF20N
In Stock
From
$21.49
Connecticut Electric
20
240
UBIF2100N
UBIF2100N
In Stock
From
$368.12
Federal Pacific
100
240
UBIF220N
UBIF220N
In Stock
From
$60.10
Connecticut Electric
20
240
UBIF230N
UBIF230N
In Stock
From
$79.35
Connecticut Electric
30
240
UBIF260NB
UBIF260NB
In Stock
From
$115.35
Connecticut Electric
60
120
UBIF270N
UBIF270N
In Stock
From
$128.24
Connecticut Electric
70
240
UBIP2020
UBIP2020
In Stock
From
$53.69
Connecticut Electric
20
120
UBIP2100
UBIP2100
In Stock
From
$236.36
Pushmatic
100
240
UBIP230
UBIP230
In Stock
From
$105.41
Connecticut Electric
30
240
UBIP250
UBIP250
In Stock
From
$103.43
Pushmatic
50
240
UBIZ0235
UBIZ0235
In Stock
From
$93.73
Connecticut Electric
35
240
UBIZ0240
UBIZ0240
In Stock
From
$42.45
Zinsco
40
240
UBIZ0260
UBIZ0260
In Stock
From
$79.37
Zinsco
60
240
UBIZ1520
UBIZ1520
In Stock
From
$103.92
Connecticut Electric
20
240
UBIZ2100B
UBIZ2100B
In Stock
From
$282.50
Connecticut Electric
100
240
UBIZ2125
UBIZ2125
In Stock
From
$600.00
Zinsco
125
240
UBIZ2125B
UBIZ2125B
In Stock
From
$392.62
Connecticut Electric
125
240
UBIZ230B
UBIZ230B
In Stock
From
$125.38
Connecticut Electric
30
240
UBIZ250
UBIZ250
In Stock
From
$79.41
Zinsco
50
240
UBIZ270
UBIZ270
In Stock
From
$179.52
Connecticut Electric
70
240
UBIZ290
UBIZ290
In Stock
From
$207.50
Zinsco
90
240
UBIZ30
UBIZ30
In Stock
From
$31.63
Connecticut Electric
30
240
UBIZ40
UBIZ40
In Stock
From
$27.81
Connecticut Electric
40
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.