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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
WLS2D320KD
WLS2D320KD
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2000
WLS2D320KE
WLS2D320KE
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2000
WLS2D320KF
WLS2D320KF
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2000
WLS2D320KG
WLS2D320KG
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2000
WLS2D320KH
WLS2D320KH
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2000
WLS2D320KJ
WLS2D320KJ
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2000
WLS2D320KK
WLS2D320KK
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2000
WLS2D320KL
WLS2D320KL
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2000
WLS2D320KN
WLS2D320KN
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2000
WLS2D320KP
WLS2D320KP
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2000
WLS2D320KQ
WLS2D320KQ
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2000
WLS2D320KR
WLS2D320KR
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2000
WLS2D320KT
WLS2D320KT
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Siemens
2000
WLS2D320KU
WLS2D320KU
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2000
WLS2D320KW
WLS2D320KW
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Siemens
2000
WLS2D320KY
WLS2D320KY
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Siemens
2000
WLS2D320L
WLS2D320L
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2000
WLS2D320LA
WLS2D320LA
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Siemens
2000
WLS2D320LB
WLS2D320LB
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Siemens
2000
WLS2D320LC
WLS2D320LC
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Siemens
2000
WLS2D320LD
WLS2D320LD
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Siemens
2000
WLS2D320LE
WLS2D320LE
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Siemens
2000
WLS2D320LF
WLS2D320LF
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Siemens
2000
WLS2D320LG
WLS2D320LG
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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.