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
WLH2F316MA
WLH2F316MA
Limited Stock
From
Get Price
Siemens
1600
WLH2F316MB
WLH2F316MB
Limited Stock
From
Get Price
Siemens
1600
WLH2F316NA
WLH2F316NA
Limited Stock
From
Get Price
Siemens
1600
WLH2F316NB
WLH2F316NB
Limited Stock
From
Get Price
Siemens
1600
WLH2F316PA
WLH2F316PA
Limited Stock
From
Get Price
Siemens
1600
WLH2F316PB
WLH2F316PB
Limited Stock
From
Get Price
Siemens
1600
WLH2F316QA
WLH2F316QA
Limited Stock
From
Get Price
Siemens
1600
WLH2F316QB
WLH2F316QB
Limited Stock
From
Get Price
Siemens
1600
WLH2F316RA
WLH2F316RA
Limited Stock
From
Get Price
Siemens
1600
WLH2F316RB
WLH2F316RB
Limited Stock
From
Get Price
Siemens
1600
WLH2F316RC
WLH2F316RC
Limited Stock
From
Get Price
Siemens
1600
WLH2F316TA
WLH2F316TA
Limited Stock
From
Get Price
Siemens
1600
WLH2F316TB
WLH2F316TB
Limited Stock
From
Get Price
Siemens
1600
WLH2F316TC
WLH2F316TC
Limited Stock
From
Get Price
Siemens
1600
WLH2F320
WLH2F320
Limited Stock
From
Get Price
Siemens
2000
WLH2F320AA
WLH2F320AA
Limited Stock
From
Get Price
Siemens
2000
WLH2F320AB
WLH2F320AB
Limited Stock
From
Get Price
Siemens
2000
WLH2F320BA
WLH2F320BA
Limited Stock
From
Get Price
Siemens
2000
WLH2F320BB
WLH2F320BB
Limited Stock
From
Get Price
Siemens
2000
WLH2F320CA
WLH2F320CA
Limited Stock
From
Get Price
Siemens
2000
WLH2F320CB
WLH2F320CB
Limited Stock
From
Get Price
Siemens
2000
WLH2F320DA
WLH2F320DA
Limited Stock
From
Get Price
Siemens
2000
WLH2F320DB
WLH2F320DB
Limited Stock
From
Get Price
Siemens
2000
WLH2F320EA
WLH2F320EA
Limited Stock
From
Get Price
Siemens
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.