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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
WLH1D308CP
WLH1D308CP
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Siemens
800
WLH1D308CQ
WLH1D308CQ
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Siemens
800
WLH1D308CR
WLH1D308CR
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Siemens
800
WLH1D308CT
WLH1D308CT
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Siemens
800
WLH1D308CU
WLH1D308CU
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Siemens
800
WLH1D308CV
WLH1D308CV
Limited Stock
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Siemens
800
WLH1D308CW
WLH1D308CW
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Siemens
800
WLH1D308CY
WLH1D308CY
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Siemens
800
WLH1D308D
WLH1D308D
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Siemens
800
WLH1D308DA
WLH1D308DA
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Siemens
800
WLH1D308DB
WLH1D308DB
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Siemens
800
WLH1D308DC
WLH1D308DC
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Siemens
800
WLH1D308DD
WLH1D308DD
Limited Stock
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Siemens
800
WLH1D308DE
WLH1D308DE
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Siemens
800
WLH1D308DF
WLH1D308DF
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Siemens
800
WLH1D308DG
WLH1D308DG
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Siemens
800
WLH1D308DH
WLH1D308DH
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Siemens
800
WLH1D308DJ
WLH1D308DJ
Limited Stock
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Siemens
800
WLH1D308DK
WLH1D308DK
Limited Stock
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Siemens
800
WLH1D308DL
WLH1D308DL
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Siemens
800
WLH1D308DN
WLH1D308DN
Limited Stock
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Siemens
800
WLH1D308DP
WLH1D308DP
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Siemens
800
WLH1D308DQ
WLH1D308DQ
Limited Stock
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Siemens
800
WLH1D308DR
WLH1D308DR
Limited Stock
From
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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.