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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
WLH1F320BU
WLH1F320BU
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Siemens
2000
WLH1F320BV
WLH1F320BV
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2000
WLH1F320BW
WLH1F320BW
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2000
WLH1F320BY
WLH1F320BY
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2000
WLH1F320C
WLH1F320C
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Siemens
2000
WLH1F320CA
WLH1F320CA
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Siemens
2000
WLH1F320CB
WLH1F320CB
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Siemens
2000
WLH1F320CD
WLH1F320CD
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Siemens
2000
WLH1F320CE
WLH1F320CE
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Siemens
2000
WLH1F320CF
WLH1F320CF
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Siemens
2000
WLH1F320CG
WLH1F320CG
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Siemens
2000
WLH1F320CH
WLH1F320CH
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Siemens
2000
WLH1F320CJ
WLH1F320CJ
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Siemens
2000
WLH1F320CK
WLH1F320CK
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Siemens
2000
WLH1F320CL
WLH1F320CL
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Siemens
2000
WLH1F320CN
WLH1F320CN
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Siemens
2000
WLH1F320CP
WLH1F320CP
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Siemens
2000
WLH1F320CQ
WLH1F320CQ
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Siemens
2000
WLH1F320CR
WLH1F320CR
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Siemens
2000
WLH1F320CT
WLH1F320CT
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Siemens
2000
WLH1F320CU
WLH1F320CU
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Siemens
2000
WLH1F320CV
WLH1F320CV
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Siemens
2000
WLH1F320CW
WLH1F320CW
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Siemens
2000
WLH1F320CY
WLH1F320CY
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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.