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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
WLS2F320NB
WLS2F320NB
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2000
WLS2F320NC
WLS2F320NC
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2000
WLS2F320ND
WLS2F320ND
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2000
WLS2F320NE
WLS2F320NE
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2000
WLS2F320NF
WLS2F320NF
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2000
WLS2F320NG
WLS2F320NG
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2000
WLS2F320NH
WLS2F320NH
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2000
WLS2F320NJ
WLS2F320NJ
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WLS2F320NK
WLS2F320NK
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2000
WLS2F320NL
WLS2F320NL
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2000
WLS2F320NN
WLS2F320NN
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Siemens
2000
WLS2F320NP
WLS2F320NP
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2000
WLS2F320NQ
WLS2F320NQ
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Siemens
2000
WLS2F320NR
WLS2F320NR
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2000
WLS2F320NT
WLS2F320NT
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2000
WLS2F320NU
WLS2F320NU
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Siemens
2000
WLS2F320NW
WLS2F320NW
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2000
WLS2F320NY
WLS2F320NY
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Siemens
2000
WLS2F320P
WLS2F320P
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Siemens
2000
WLS2F320PA
WLS2F320PA
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Siemens
2000
WLS2F320PB
WLS2F320PB
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Siemens
2000
WLS2F320PD
WLS2F320PD
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Siemens
2000
WLS2F320PE
WLS2F320PE
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Siemens
2000
WLS2F320PF
WLS2F320PF
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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.