1. Home / 
  2. All Categories / 
  3. Circuit Breaker / 
  4. Insulated Case Circuit Breaker

Insulated Case Circuit Breaker

For circuit breaker applications in commercial and industrial power distribution systems, insulated case circuit breakers are among the most critical components for reliable overcurrent protection and system safety. Insulated case circuit breakers provide adjustable trip settings and high interrupting capacity while offering compact installation in panelboards and switchboards. Electrical.com carries an extensive selection of insulated 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, industrial facilities, data centers, and healthcare infrastructure applications.
SORT BY
Part Number
PRICE
Manufacturer
Amperage
SEF25A8
SEF25A8
Limited Stock
From
Get Price
Square D
2500
SEF25E1C1S1
SEF25E1C1S1
Limited Stock
From
Get Price
Square D
2500
SEF25E1C1S1M2
SEF25E1C1S1M2
Limited Stock
From
Get Price
Schneider Electric
2500
SEF25M2
SEF25M2
Limited Stock
From
Get Price
Square D
2500
SEF25S1XA
SEF25S1XA
Limited Stock
From
Get Price
Square D
2500
SEF30A4
SEF30A4
Limited Stock
From
Get Price
Square D
3000
SEF30A8
SEF30A8
Limited Stock
From
Get Price
Square D
3000
SEF30E1C1S1M2
SEF30E1C1S1M2
Limited Stock
From
Get Price
Schneider Electric
3000
SEF30M2
SEF30M2
Limited Stock
From
Get Price
Square D
3000
SEF30S1XA
SEF30S1XA
Limited Stock
From
Get Price
Schneider Electric
3000
SEF32
SEF32
Limited Stock
From
Get Price
Schneider Electric
3200
SEF32A2
SEF32A2
Limited Stock
From
Get Price
Schneider Electric
3200
SEF32A4
SEF32A4
Limited Stock
From
Get Price
Square D
3200
SEF32A8
SEF32A8
Limited Stock
From
Get Price
Square D
3200
SEF32E1C1S1
SEF32E1C1S1
Limited Stock
From
Get Price
Square D
3200
SEF32E1C1S1M2
SEF32E1C1S1M2
Limited Stock
From
Get Price
Schneider Electric
3200
SEF32M2
SEF32M2
Limited Stock
From
Get Price
Schneider Electric
3200
SEF32S1XA
SEF32S1XA
Limited Stock
From
Get Price
Schneider Electric
3200
SEF361200LSAMRZ
SEF361200LSAMRZ
Limited Stock
From
Get Price
Square D
1200
SEF361200LSGMRZ
SEF361200LSGMRZ
Limited Stock
From
Get Price
Schneider Electric
1200
SEF361600LSAMRZ
SEF361600LSAMRZ
Limited Stock
From
Get Price
Square D
1600
SEF361600LSGMRZ
SEF361600LSGMRZ
Limited Stock
From
Get Price
Square D
1600
SEF362000LSAMRZ
SEF362000LSAMRZ
Limited Stock
From
Get Price
Schneider Electric
2000
SEF362000LSGMRZ
SEF362000LSGMRZ
Limited Stock
From
Get Price
Square D
2000

Electrical.com stocks the largest inventory of insulated case circuit breakers in the world, with over 1 million square feet of new, used, surplus, and re-certified circuit breakers available for immediate shipment. From low voltage to medium voltage applications, we have the insulated case breakers you need when others say no. Our comprehensive insulated case circuit breaker inventory spans all amperage ratings, voltage classes, and frame sizes 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 insulated case circuit breakers serve critical applications across industrial power distribution systems, manufacturing facilities, commercial buildings, data centers, utility substations, process control installations, and heavy industrial equipment.


Whether you're maintaining legacy electrical systems with obsolete insulated case breaker models or sourcing current production breakers for new installations and upgrades, our 40+ warehouse locations across the US and Canada ensure rapid delivery to minimize your downtime. Need insulated 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.