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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
NZM9-250/ZM9-250-CNA
NZM9-250/ZM9-250-CNA
Limited Stock
From
Get Price
Eaton
-
-
QBHW3100HF
QBHW3100HF
In Stock
From
$23.26
Eaton
-
-
XTPB6P3BC1
XTPB6P3BC1
In Stock
From
$127.45
Eaton
-
-
XTPR004BC1NL
XTPR004BC1NL
In Stock
From
$117.36
Eaton
-
-
XTPR1P6BC1NL
XTPR1P6BC1NL
Limited Stock
From
Get Price
Eaton
-
-
XTPR6P3BC1NL
XTPR6P3BC1NL
In Stock
From
$123.54
Eaton
-
-
0911-15-1P
0911-15-1P
In Stock
From
$27.73
Heinemann
15
-
0911-20-1P
0911-20-1P
In Stock
From
$29.83
Heinemann
20
-
0911-25-1P
0911-25-1P
In Stock
From
$27.47
Cutler Hammer
25
-
0911-50-1P
0911-50-1P
In Stock
From
$34.04
Cutler Hammer
50
-
313C644G30
313C644G30
In Stock
From
$54.40
Eaton
-
-
624B609G01
624B609G01
In Stock
From
$142.76
Eaton
-
-
BRNSURGE
BRNSURGE
In Stock
From
$90.31
Cutler Hammer
-
-
CH115CAFACS
CH115CAFACS
In Stock
From
$119.51
Eaton
-
240
EGHMVD24RXO
EGHMVD24RXO
In Stock
From
$76.50
Eaton
-
600
RGH316039EC
RGH316039EC
In Stock
From
$48,763.00
Eaton
1600
-
SPHM3RM02R5
SPHM3RM02R5
In Stock
From
$327.24
Eaton
-
-
0912-30-1P
0912-30-1P
In Stock
From
$32.65
Eaton
-
-
101MB2
101MB2
Limited Stock
From
Get Price
Eaton
-
-
101MB3
101MB3
Limited Stock
From
Get Price
Eaton
-
-
161MB
161MB
Limited Stock
From
Get Price
Eaton
-
-
161MB3
161MB3
Limited Stock
From
Get Price
Eaton
-
-
161QEB
161QEB
Limited Stock
From
Get Price
Eaton
-
-
163MB2
163MB2
Limited Stock
From
Get Price
Eaton
-
-
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.