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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
WLS2F320EU
WLS2F320EU
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2000
WLS2F320EW
WLS2F320EW
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2000
WLS2F320EY
WLS2F320EY
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2000
WLS2F320F
WLS2F320F
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2000
WLS2F320FA
WLS2F320FA
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2000
WLS2F320FB
WLS2F320FB
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2000
WLS2F320FC
WLS2F320FC
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2000
WLS2F320FD
WLS2F320FD
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2000
WLS2F320FE
WLS2F320FE
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2000
WLS2F320FF
WLS2F320FF
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2000
WLS2F320FG
WLS2F320FG
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2000
WLS2F320FH
WLS2F320FH
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2000
WLS2F320FJ
WLS2F320FJ
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Siemens
2000
WLS2F320FK
WLS2F320FK
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2000
WLS2F320FL
WLS2F320FL
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2000
WLS2F320FN
WLS2F320FN
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Siemens
2000
WLS2F320FP
WLS2F320FP
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2000
WLS2F320FQ
WLS2F320FQ
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Siemens
2000
WLS2F320FR
WLS2F320FR
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Siemens
2000
WLS2F320FT
WLS2F320FT
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Siemens
2000
WLS2F320FU
WLS2F320FU
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Siemens
2000
WLS2F320FW
WLS2F320FW
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2000
WLS2F320FY
WLS2F320FY
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Siemens
2000
WLS2F320G
WLS2F320G
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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.