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
SHD3G638P
SHD3G638P
Limited Stock
From
Get Price
General Electric
2000
SHD3G638R
SHD3G638R
Limited Stock
From
Get Price
General Electric
2000
SHD3G638T
SHD3G638T
Limited Stock
From
Get Price
General Electric
2000
SHD3G638U
SHD3G638U
Limited Stock
From
Get Price
General Electric
2000
SHD3G638W
SHD3G638W
Limited Stock
From
Get Price
General Electric
2000
SHD3G639M
SHD3G639M
Limited Stock
From
Get Price
General Electric
2000
SHD3G639N
SHD3G639N
Limited Stock
From
Get Price
General Electric
2000
SHD3G639P
SHD3G639P
Limited Stock
From
Get Price
General Electric
2000
SHD3G639R
SHD3G639R
Limited Stock
From
Get Price
General Electric
2000
SHD3G639T
SHD3G639T
Limited Stock
From
Get Price
General Electric
2000
SHD3G639U
SHD3G639U
Limited Stock
From
Get Price
General Electric
2000
SHD3G639W
SHD3G639W
Limited Stock
From
Get Price
General Electric
2000
SHD3G651M
SHD3G651M
Limited Stock
From
Get Price
General Electric
2000
SHD3G651N
SHD3G651N
Limited Stock
From
Get Price
General Electric
2000
SHD3G651P
SHD3G651P
Limited Stock
From
Get Price
General Electric
2000
SHD3G651R
SHD3G651R
Limited Stock
From
Get Price
General Electric
2000
SHD3G651T
SHD3G651T
Limited Stock
From
Get Price
General Electric
2000
SHD3G651U
SHD3G651U
Limited Stock
From
Get Price
General Electric
2000
SHD3G651W
SHD3G651W
Limited Stock
From
Get Price
General Electric
2000
SHD3G652M
SHD3G652M
Limited Stock
From
Get Price
General Electric
2000
SHD3G652N
SHD3G652N
Limited Stock
From
Get Price
General Electric
2000
SHD3G652P
SHD3G652P
Limited Stock
From
Get Price
General Electric
2000
SHD3G652R
SHD3G652R
Limited Stock
From
Get Price
General Electric
2000
SHD3G652T
SHD3G652T
Limited Stock
From
Get Price
General Electric
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.