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
SHB4G4E6H
SHB4G4E6H
Limited Stock
From
Get Price
General Electric
1000
SHB4G4E6K
SHB4G4E6K
Limited Stock
From
Get Price
General Electric
1000
SHB4G4E6N
SHB4G4E6N
Limited Stock
From
Get Price
General Electric
1000
SHB4G4E6P
SHB4G4E6P
Limited Stock
From
Get Price
General Electric
1000
SHB4G4E7H
SHB4G4E7H
Limited Stock
From
Get Price
General Electric
1000
SHB4G4E7K
SHB4G4E7K
Limited Stock
From
Get Price
General Electric
1000
SHB4G4E7N
SHB4G4E7N
Limited Stock
From
Get Price
General Electric
1000
SHB4G4E7P
SHB4G4E7P
Limited Stock
From
Get Price
General Electric
1000
SHB4G4E8H
SHB4G4E8H
Limited Stock
From
Get Price
General Electric
1000
SHB4G4E8K
SHB4G4E8K
Limited Stock
From
Get Price
General Electric
1000
SHB4G4E8N
SHB4G4E8N
Limited Stock
From
Get Price
General Electric
1000
SHB4G4E8P
SHB4G4E8P
Limited Stock
From
Get Price
General Electric
1000
SHB4G4E9H
SHB4G4E9H
Limited Stock
From
Get Price
General Electric
1000
SHB4G4E9K
SHB4G4E9K
Limited Stock
From
Get Price
General Electric
1000
SHB4G4E9N
SHB4G4E9N
Limited Stock
From
Get Price
General Electric
1000
SHB4G4E9P
SHB4G4E9P
Limited Stock
From
Get Price
General Electric
1000
SHB4G4F1H
SHB4G4F1H
Limited Stock
From
Get Price
General Electric
1000
SHB4G4F1K
SHB4G4F1K
Limited Stock
From
Get Price
General Electric
1000
SHB4G4F1N
SHB4G4F1N
Limited Stock
From
Get Price
General Electric
1000
SHB4G4F1P
SHB4G4F1P
Limited Stock
From
Get Price
General Electric
1000
SHB4G4F2H
SHB4G4F2H
Limited Stock
From
Get Price
General Electric
1000
SHB4G4F2K
SHB4G4F2K
Limited Stock
From
Get Price
General Electric
1000
SHB4G4F2N
SHB4G4F2N
Limited Stock
From
Get Price
General Electric
1000
SHB4G4F2P
SHB4G4F2P
Limited Stock
From
Get Price
General Electric
1000

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.