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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
WLS2D320GT
WLS2D320GT
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Siemens
2000
WLS2D320GU
WLS2D320GU
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2000
WLS2D320GW
WLS2D320GW
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Siemens
2000
WLS2D320GY
WLS2D320GY
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2000
WLS2D320H
WLS2D320H
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Siemens
2000
WLS2D320HA
WLS2D320HA
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Siemens
2000
WLS2D320HB
WLS2D320HB
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Siemens
2000
WLS2D320HC
WLS2D320HC
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2000
WLS2D320HD
WLS2D320HD
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Siemens
2000
WLS2D320HE
WLS2D320HE
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Siemens
2000
WLS2D320HF
WLS2D320HF
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Siemens
2000
WLS2D320HG
WLS2D320HG
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Siemens
2000
WLS2D320HH
WLS2D320HH
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Siemens
2000
WLS2D320HJ
WLS2D320HJ
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Siemens
2000
WLS2D320HK
WLS2D320HK
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Siemens
2000
WLS2D320HL
WLS2D320HL
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Siemens
2000
WLS2D320HN
WLS2D320HN
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Siemens
2000
WLS2D320HP
WLS2D320HP
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Siemens
2000
WLS2D320HQ
WLS2D320HQ
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Siemens
2000
WLS2D320HR
WLS2D320HR
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Siemens
2000
WLS2D320HT
WLS2D320HT
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Siemens
2000
WLS2D320HU
WLS2D320HU
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Siemens
2000
WLS2D320HW
WLS2D320HW
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Siemens
2000
WLS2D320HY
WLS2D320HY
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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.