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
WLS2D316J
WLS2D316J
Limited Stock
From
Get Price
Siemens
1600
WLS2D316JA
WLS2D316JA
Limited Stock
From
Get Price
Siemens
1600
WLS2D316JB
WLS2D316JB
Limited Stock
From
Get Price
Siemens
1600
WLS2D316JC
WLS2D316JC
Limited Stock
From
Get Price
Siemens
1600
WLS2D316JD
WLS2D316JD
Limited Stock
From
Get Price
Siemens
1600
WLS2D316JE
WLS2D316JE
Limited Stock
From
Get Price
Siemens
1600
WLS2D316JF
WLS2D316JF
Limited Stock
From
Get Price
Siemens
1600
WLS2D316JG
WLS2D316JG
Limited Stock
From
Get Price
Siemens
1600
WLS2D316JH
WLS2D316JH
Limited Stock
From
Get Price
Siemens
1600
WLS2D316JJ
WLS2D316JJ
Limited Stock
From
Get Price
Siemens
1600
WLS2D316JK
WLS2D316JK
Limited Stock
From
Get Price
Siemens
1600
WLS2D316JL
WLS2D316JL
Limited Stock
From
Get Price
Siemens
1600
WLS2D316JN
WLS2D316JN
Limited Stock
From
Get Price
Siemens
1600
WLS2D316JP
WLS2D316JP
Limited Stock
From
Get Price
Siemens
1600
WLS2D316JQ
WLS2D316JQ
Limited Stock
From
Get Price
Siemens
1600
WLS2D316JR
WLS2D316JR
Limited Stock
From
Get Price
Siemens
1600
WLS2D316JT
WLS2D316JT
Limited Stock
From
Get Price
Siemens
1600
WLS2D316JU
WLS2D316JU
Limited Stock
From
Get Price
Siemens
1600
WLS2D316JW
WLS2D316JW
Limited Stock
From
Get Price
Siemens
1600
WLS2D316JY
WLS2D316JY
Limited Stock
From
Get Price
Siemens
1600
WLS2D316K
WLS2D316K
Limited Stock
From
Get Price
Siemens
1600
WLS2D316KA
WLS2D316KA
Limited Stock
From
Get Price
Siemens
1600
WLS2D316KB
WLS2D316KB
Limited Stock
From
Get Price
Siemens
1600
WLS2D316KC
WLS2D316KC
Limited Stock
From
Get Price
Siemens
1600

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.