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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.
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Amperage
WLL2F320CD
WLL2F320CD
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2000
WLL2F320CE
WLL2F320CE
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2000
WLL2F320CF
WLL2F320CF
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2000
WLL2F320CG
WLL2F320CG
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2000
WLL2F320CH
WLL2F320CH
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2000
WLL2F320CJ
WLL2F320CJ
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2000
WLL2F320CK
WLL2F320CK
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2000
WLL2F320CL
WLL2F320CL
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2000
WLL2F320CN
WLL2F320CN
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Siemens
2000
WLL2F320CP
WLL2F320CP
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Siemens
2000
WLL2F320CQ
WLL2F320CQ
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Siemens
2000
WLL2F320CR
WLL2F320CR
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Siemens
2000
WLL2F320CT
WLL2F320CT
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Siemens
2000
WLL2F320CU
WLL2F320CU
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Siemens
2000
WLL2F320CW
WLL2F320CW
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Siemens
2000
WLL2F320CY
WLL2F320CY
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Siemens
2000
WLL2F320D
WLL2F320D
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Siemens
2000
WLL2F320DA
WLL2F320DA
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Siemens
2000
WLL2F320DB
WLL2F320DB
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Siemens
2000
WLL2F320DC
WLL2F320DC
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Siemens
2000
WLL2F320DD
WLL2F320DD
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Siemens
2000
WLL2F320DE
WLL2F320DE
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2000
WLL2F320DF
WLL2F320DF
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Siemens
2000
WLL2F320DG
WLL2F320DG
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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.