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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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Part Number
PRICE
Manufacturer
Amperage
WLS2D308EQ
WLS2D308EQ
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Siemens
800
WLS2D308ER
WLS2D308ER
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Siemens
800
WLS2D308ET
WLS2D308ET
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Siemens
800
WLS2D308EU
WLS2D308EU
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Siemens
800
WLS2D308EW
WLS2D308EW
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Siemens
800
WLS2D308EY
WLS2D308EY
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Siemens
800
WLS2D308F
WLS2D308F
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Siemens
800
WLS2D308FA
WLS2D308FA
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Siemens
800
WLS2D308FB
WLS2D308FB
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Siemens
800
WLS2D308FC
WLS2D308FC
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Siemens
800
WLS2D308FD
WLS2D308FD
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Siemens
800
WLS2D308FE
WLS2D308FE
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Siemens
800
WLS2D308FF
WLS2D308FF
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Siemens
800
WLS2D308FG
WLS2D308FG
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Siemens
800
WLS2D308FH
WLS2D308FH
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Siemens
800
WLS2D308FJ
WLS2D308FJ
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Siemens
800
WLS2D308FK
WLS2D308FK
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Siemens
800
WLS2D308FL
WLS2D308FL
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Siemens
800
WLS2D308FN
WLS2D308FN
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Siemens
800
WLS2D308FP
WLS2D308FP
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Siemens
800
WLS2D308FQ
WLS2D308FQ
Limited Stock
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Siemens
800
WLS2D308FR
WLS2D308FR
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Siemens
800
WLS2D308FT
WLS2D308FT
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Siemens
800
WLS2D308FU
WLS2D308FU
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Siemens
800

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.