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
WLL2F308CL
WLL2F308CL
Limited Stock
From
Get Price
Siemens
800
WLL2F308CN
WLL2F308CN
Limited Stock
From
Get Price
Siemens
800
WLL2F308CP
WLL2F308CP
Limited Stock
From
Get Price
Siemens
800
WLL2F308CQ
WLL2F308CQ
Limited Stock
From
Get Price
Siemens
800
WLL2F308CR
WLL2F308CR
Limited Stock
From
Get Price
Siemens
800
WLL2F308CT
WLL2F308CT
Limited Stock
From
Get Price
Siemens
800
WLL2F308CU
WLL2F308CU
Limited Stock
From
Get Price
Siemens
800
WLL2F308CW
WLL2F308CW
Limited Stock
From
Get Price
Siemens
800
WLL2F308CY
WLL2F308CY
Limited Stock
From
Get Price
Siemens
800
WLL2F308D
WLL2F308D
Limited Stock
From
Get Price
Siemens
800
WLL2F308DA
WLL2F308DA
Limited Stock
From
Get Price
Siemens
800
WLL2F308DB
WLL2F308DB
Limited Stock
From
Get Price
Siemens
800
WLL2F308DC
WLL2F308DC
Limited Stock
From
Get Price
Siemens
800
WLL2F308DD
WLL2F308DD
Limited Stock
From
Get Price
Siemens
800
WLL2F308DE
WLL2F308DE
Limited Stock
From
Get Price
Siemens
800
WLL2F308DF
WLL2F308DF
Limited Stock
From
Get Price
Siemens
800
WLL2F308DG
WLL2F308DG
Limited Stock
From
Get Price
Siemens
800
WLL2F308DH
WLL2F308DH
Limited Stock
From
Get Price
Siemens
800
WLL2F308DJ
WLL2F308DJ
Limited Stock
From
Get Price
Siemens
800
WLL2F308DK
WLL2F308DK
Limited Stock
From
Get Price
Siemens
800
WLL2F308DL
WLL2F308DL
Limited Stock
From
Get Price
Siemens
800
WLL2F308DN
WLL2F308DN
Limited Stock
From
Get Price
Siemens
800
WLL2F308DP
WLL2F308DP
Limited Stock
From
Get Price
Siemens
800
WLL2F308DQ
WLL2F308DQ
Limited Stock
From
Get Price
Siemens
800

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.