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
SHD5G8E7U
SHD5G8E7U
Limited Stock
From
Get Price
General Electric
3000
SHD5G8E7W
SHD5G8E7W
Limited Stock
From
Get Price
General Electric
3000
SHD5G8E81
SHD5G8E81
Limited Stock
From
Get Price
General Electric
3000
SHD5G8E82
SHD5G8E82
Limited Stock
From
Get Price
General Electric
3000
SHD5G8E8R
SHD5G8E8R
Limited Stock
From
Get Price
General Electric
3000
SHD5G8E8U
SHD5G8E8U
Limited Stock
From
Get Price
General Electric
3000
SHD5G8E8W
SHD5G8E8W
Limited Stock
From
Get Price
General Electric
3000
SHD5G8E91
SHD5G8E91
Limited Stock
From
Get Price
General Electric
3000
SHD5G8E92
SHD5G8E92
Limited Stock
From
Get Price
General Electric
3000
SHD5G8E9R
SHD5G8E9R
Limited Stock
From
Get Price
General Electric
3000
SHD5G8E9U
SHD5G8E9U
Limited Stock
From
Get Price
General Electric
3000
SHD5G8E9W
SHD5G8E9W
Limited Stock
From
Get Price
General Electric
3000
SHD5G8F11
SHD5G8F11
Limited Stock
From
Get Price
General Electric
3000
SHD5G8F12
SHD5G8F12
Limited Stock
From
Get Price
General Electric
3000
SHD5G8F1R
SHD5G8F1R
Limited Stock
From
Get Price
General Electric
3000
SHD5G8F1U
SHD5G8F1U
Limited Stock
From
Get Price
General Electric
3000
SHD5G8F1W
SHD5G8F1W
Limited Stock
From
Get Price
General Electric
3000
SHD5G8F21
SHD5G8F21
Limited Stock
From
Get Price
General Electric
3000
SHD5G8F22
SHD5G8F22
Limited Stock
From
Get Price
General Electric
3000
SHD5G8F2R
SHD5G8F2R
Limited Stock
From
Get Price
General Electric
3000
SHD5G8F2U
SHD5G8F2U
Limited Stock
From
Get Price
General Electric
3000
SHD5G8F2W
SHD5G8F2W
Limited Stock
From
Get Price
General Electric
3000
SHD5G8F31
SHD5G8F31
Limited Stock
From
Get Price
General Electric
3000
SHD5G8F32
SHD5G8F32
Limited Stock
From
Get Price
General Electric
3000

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.