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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
WLS2F320RW
WLS2F320RW
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2000
WLS2F320RY
WLS2F320RY
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2000
WLS2F320T
WLS2F320T
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2000
WLS2F320TA
WLS2F320TA
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2000
WLS2F320TB
WLS2F320TB
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2000
WLS2F320TD
WLS2F320TD
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2000
WLS2F320TE
WLS2F320TE
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2000
WLS2F320TF
WLS2F320TF
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2000
WLS2F320TG
WLS2F320TG
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2000
WLS2F320TH
WLS2F320TH
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2000
WLS2F320TJ
WLS2F320TJ
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2000
WLS2F320TK
WLS2F320TK
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2000
WLS2F320TL
WLS2F320TL
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2000
WLS2F320TN
WLS2F320TN
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2000
WLS2F320TP
WLS2F320TP
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2000
WLS2F320TQ
WLS2F320TQ
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Siemens
2000
WLS2F320TR
WLS2F320TR
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2000
WLS2F320TT
WLS2F320TT
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Siemens
2000
WLS2F320TU
WLS2F320TU
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Siemens
2000
WLS2F320TW
WLS2F320TW
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Siemens
2000
WLS2F320TY
WLS2F320TY
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Siemens
2000
WLS2F320U
WLS2F320U
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2000
WLS2F320UA
WLS2F320UA
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Siemens
2000
WLS2F320UB
WLS2F320UB
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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.