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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
WLS2F320DP
WLS2F320DP
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Siemens
2000
WLS2F320DQ
WLS2F320DQ
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2000
WLS2F320DR
WLS2F320DR
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2000
WLS2F320DT
WLS2F320DT
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2000
WLS2F320DU
WLS2F320DU
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2000
WLS2F320DW
WLS2F320DW
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2000
WLS2F320DY
WLS2F320DY
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2000
WLS2F320E
WLS2F320E
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2000
WLS2F320EA
WLS2F320EA
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2000
WLS2F320EB
WLS2F320EB
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2000
WLS2F320EC
WLS2F320EC
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2000
WLS2F320ED
WLS2F320ED
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2000
WLS2F320EE
WLS2F320EE
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Siemens
2000
WLS2F320EF
WLS2F320EF
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2000
WLS2F320EG
WLS2F320EG
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2000
WLS2F320EH
WLS2F320EH
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2000
WLS2F320EJ
WLS2F320EJ
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2000
WLS2F320EK
WLS2F320EK
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Siemens
2000
WLS2F320EL
WLS2F320EL
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Siemens
2000
WLS2F320EN
WLS2F320EN
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Siemens
2000
WLS2F320EP
WLS2F320EP
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Siemens
2000
WLS2F320EQ
WLS2F320EQ
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Siemens
2000
WLS2F320ER
WLS2F320ER
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Siemens
2000
WLS2F320ET
WLS2F320ET
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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.