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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
WLS2F320JK
WLS2F320JK
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2000
WLS2F320JL
WLS2F320JL
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2000
WLS2F320JN
WLS2F320JN
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2000
WLS2F320JP
WLS2F320JP
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2000
WLS2F320JQ
WLS2F320JQ
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Siemens
2000
WLS2F320JR
WLS2F320JR
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2000
WLS2F320JT
WLS2F320JT
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2000
WLS2F320JU
WLS2F320JU
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2000
WLS2F320JW
WLS2F320JW
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2000
WLS2F320JY
WLS2F320JY
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2000
WLS2F320K
WLS2F320K
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2000
WLS2F320KA
WLS2F320KA
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2000
WLS2F320KB
WLS2F320KB
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Siemens
2000
WLS2F320KC
WLS2F320KC
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2000
WLS2F320KD
WLS2F320KD
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2000
WLS2F320KE
WLS2F320KE
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2000
WLS2F320KF
WLS2F320KF
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Siemens
2000
WLS2F320KG
WLS2F320KG
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Siemens
2000
WLS2F320KH
WLS2F320KH
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Siemens
2000
WLS2F320KJ
WLS2F320KJ
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Siemens
2000
WLS2F320KK
WLS2F320KK
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Siemens
2000
WLS2F320KL
WLS2F320KL
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Siemens
2000
WLS2F320KN
WLS2F320KN
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Siemens
2000
WLS2F320KP
WLS2F320KP
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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.