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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
WLS1D320FC
WLS1D320FC
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2000
WLS1D320FD
WLS1D320FD
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2000
WLS1D320FE
WLS1D320FE
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2000
WLS1D320FF
WLS1D320FF
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2000
WLS1D320FG
WLS1D320FG
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2000
WLS1D320FH
WLS1D320FH
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2000
WLS1D320FJ
WLS1D320FJ
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2000
WLS1D320FK
WLS1D320FK
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2000
WLS1D320FL
WLS1D320FL
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2000
WLS1D320FN
WLS1D320FN
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Siemens
2000
WLS1D320FP
WLS1D320FP
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Siemens
2000
WLS1D320FQ
WLS1D320FQ
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Siemens
2000
WLS1D320FR
WLS1D320FR
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Siemens
2000
WLS1D320FT
WLS1D320FT
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2000
WLS1D320FU
WLS1D320FU
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2000
WLS1D320FW
WLS1D320FW
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2000
WLS1D320FY
WLS1D320FY
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Siemens
2000
WLS1D320G
WLS1D320G
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Siemens
2000
WLS1D320GA
WLS1D320GA
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Siemens
2000
WLS1D320GB
WLS1D320GB
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Siemens
2000
WLS1D320GC
WLS1D320GC
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Siemens
2000
WLS1D320GD
WLS1D320GD
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Siemens
2000
WLS1D320GE
WLS1D320GE
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Siemens
2000
WLS1D320GF
WLS1D320GF
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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.