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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
WLS2F320QP
WLS2F320QP
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2000
WLS2F320QQ
WLS2F320QQ
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2000
WLS2F320QR
WLS2F320QR
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2000
WLS2F320QT
WLS2F320QT
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2000
WLS2F320QU
WLS2F320QU
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2000
WLS2F320QW
WLS2F320QW
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2000
WLS2F320QY
WLS2F320QY
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2000
WLS2F320R
WLS2F320R
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2000
WLS2F320RA
WLS2F320RA
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2000
WLS2F320RB
WLS2F320RB
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2000
WLS2F320RD
WLS2F320RD
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2000
WLS2F320RE
WLS2F320RE
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2000
WLS2F320RF
WLS2F320RF
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Siemens
2000
WLS2F320RG
WLS2F320RG
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Siemens
2000
WLS2F320RH
WLS2F320RH
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2000
WLS2F320RJ
WLS2F320RJ
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Siemens
2000
WLS2F320RK
WLS2F320RK
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Siemens
2000
WLS2F320RL
WLS2F320RL
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Siemens
2000
WLS2F320RN
WLS2F320RN
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Siemens
2000
WLS2F320RP
WLS2F320RP
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Siemens
2000
WLS2F320RQ
WLS2F320RQ
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Siemens
2000
WLS2F320RR
WLS2F320RR
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Siemens
2000
WLS2F320RT
WLS2F320RT
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Siemens
2000
WLS2F320RU
WLS2F320RU
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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.