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
WLL1D316BT
WLL1D316BT
Limited Stock
From
Get Price
Siemens
1600
WLL1D316BU
WLL1D316BU
Limited Stock
From
Get Price
Siemens
1600
WLL1D316BW
WLL1D316BW
Limited Stock
From
Get Price
Siemens
1600
WLL1D316BY
WLL1D316BY
Limited Stock
From
Get Price
Siemens
1600
WLL1D316C
WLL1D316C
Limited Stock
From
Get Price
Siemens
1600
WLL1D316CA
WLL1D316CA
Limited Stock
From
Get Price
Siemens
1600
WLL1D316CB
WLL1D316CB
Limited Stock
From
Get Price
Siemens
1600
WLL1D316CC
WLL1D316CC
Limited Stock
From
Get Price
Siemens
1600
WLL1D316CD
WLL1D316CD
Limited Stock
From
Get Price
Siemens
1600
WLL1D316CE
WLL1D316CE
Limited Stock
From
Get Price
Siemens
1600
WLL1D316CF
WLL1D316CF
Limited Stock
From
Get Price
Siemens
1600
WLL1D316CG
WLL1D316CG
Limited Stock
From
Get Price
Siemens
1600
WLL1D316CH
WLL1D316CH
Limited Stock
From
Get Price
Siemens
1600
WLL1D316CJ
WLL1D316CJ
Limited Stock
From
Get Price
Siemens
1600
WLL1D316CK
WLL1D316CK
Limited Stock
From
Get Price
Siemens
1600
WLL1D316CL
WLL1D316CL
Limited Stock
From
Get Price
Siemens
1600
WLL1D316CN
WLL1D316CN
Limited Stock
From
Get Price
Siemens
1600
WLL1D316CP
WLL1D316CP
Limited Stock
From
Get Price
Siemens
1600
WLL1D316CQ
WLL1D316CQ
Limited Stock
From
Get Price
Siemens
1600
WLL1D316CR
WLL1D316CR
Limited Stock
From
Get Price
Siemens
1600
WLL1D316CT
WLL1D316CT
Limited Stock
From
Get Price
Siemens
1600
WLL1D316CU
WLL1D316CU
Limited Stock
From
Get Price
Siemens
1600
WLL1D316CW
WLL1D316CW
Limited Stock
From
Get Price
Siemens
1600
WLL1D316CY
WLL1D316CY
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.