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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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Manufacturer
Amperage
WLL2F316KJ
WLL2F316KJ
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Siemens
1600
WLL2F316KK
WLL2F316KK
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Siemens
1600
WLL2F316KL
WLL2F316KL
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Siemens
1600
WLL2F316KN
WLL2F316KN
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Siemens
1600
WLL2F316KP
WLL2F316KP
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Siemens
1600
WLL2F316KQ
WLL2F316KQ
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Siemens
1600
WLL2F316KR
WLL2F316KR
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Siemens
1600
WLL2F316KT
WLL2F316KT
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Siemens
1600
WLL2F316KU
WLL2F316KU
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Siemens
1600
WLL2F316KW
WLL2F316KW
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Siemens
1600
WLL2F316KY
WLL2F316KY
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Siemens
1600
WLL2F316L
WLL2F316L
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Siemens
1600
WLL2F316LA
WLL2F316LA
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Siemens
1600
WLL2F316LB
WLL2F316LB
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Siemens
1600
WLL2F316LC
WLL2F316LC
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Siemens
1600
WLL2F316LD
WLL2F316LD
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Siemens
1600
WLL2F316LE
WLL2F316LE
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Siemens
1600
WLL2F316LF
WLL2F316LF
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Siemens
1600
WLL2F316LG
WLL2F316LG
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Siemens
1600
WLL2F316LH
WLL2F316LH
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Siemens
1600
WLL2F316LJ
WLL2F316LJ
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Siemens
1600
WLL2F316LK
WLL2F316LK
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Siemens
1600
WLL2F316LL
WLL2F316LL
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Siemens
1600
WLL2F316LP
WLL2F316LP
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Siemens
1600

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.