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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
WLL1F316BJ
WLL1F316BJ
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Siemens
1600
WLL1F316BK
WLL1F316BK
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Siemens
1600
WLL1F316BL
WLL1F316BL
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Siemens
1600
WLL1F316BN
WLL1F316BN
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Siemens
1600
WLL1F316BP
WLL1F316BP
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Siemens
1600
WLL1F316BQ
WLL1F316BQ
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Siemens
1600
WLL1F316BR
WLL1F316BR
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Siemens
1600
WLL1F316BT
WLL1F316BT
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Siemens
1600
WLL1F316BU
WLL1F316BU
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Siemens
1600
WLL1F316BW
WLL1F316BW
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Siemens
1600
WLL1F316BY
WLL1F316BY
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Siemens
1600
WLL1F316C
WLL1F316C
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Siemens
1600
WLL1F316CA
WLL1F316CA
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Siemens
1600
WLL1F316CB
WLL1F316CB
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Siemens
1600
WLL1F316CC
WLL1F316CC
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Siemens
1600
WLL1F316CD
WLL1F316CD
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Siemens
1600
WLL1F316CE
WLL1F316CE
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Siemens
1600
WLL1F316CF
WLL1F316CF
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Siemens
1600
WLL1F316CG
WLL1F316CG
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Siemens
1600
WLL1F316CH
WLL1F316CH
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Siemens
1600
WLL1F316CJ
WLL1F316CJ
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Siemens
1600
WLL1F316CK
WLL1F316CK
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Siemens
1600
WLL1F316CL
WLL1F316CL
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Siemens
1600
WLL1F316CN
WLL1F316CN
Limited Stock
From
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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.