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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
WLS2F320AA
WLS2F320AA
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2000
WLS2F320AB
WLS2F320AB
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2000
WLS2F320AC
WLS2F320AC
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2000
WLS2F320AD
WLS2F320AD
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2000
WLS2F320AE
WLS2F320AE
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2000
WLS2F320AF
WLS2F320AF
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2000
WLS2F320AG
WLS2F320AG
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2000
WLS2F320AH
WLS2F320AH
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2000
WLS2F320AJ
WLS2F320AJ
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2000
WLS2F320AK
WLS2F320AK
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2000
WLS2F320AL
WLS2F320AL
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2000
WLS2F320AN
WLS2F320AN
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Siemens
2000
WLS2F320AP
WLS2F320AP
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Siemens
2000
WLS2F320AQ
WLS2F320AQ
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Siemens
2000
WLS2F320AR
WLS2F320AR
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2000
WLS2F320AT
WLS2F320AT
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Siemens
2000
WLS2F320AU
WLS2F320AU
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Siemens
2000
WLS2F320AW
WLS2F320AW
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Siemens
2000
WLS2F320AY
WLS2F320AY
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Siemens
2000
WLS2F320B
WLS2F320B
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Siemens
2000
WLS2F320BA
WLS2F320BA
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Siemens
2000
WLS2F320BB
WLS2F320BB
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Siemens
2000
WLS2F320BC
WLS2F320BC
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Siemens
2000
WLS2F320BD
WLS2F320BD
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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.