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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
WLS1D316ER
WLS1D316ER
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Siemens
1600
WLS1D316ET
WLS1D316ET
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Siemens
1600
WLS1D316EU
WLS1D316EU
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Siemens
1600
WLS1D316EW
WLS1D316EW
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Siemens
1600
WLS1D316EY
WLS1D316EY
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Siemens
1600
WLS1D316F
WLS1D316F
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Siemens
1600
WLS1D316FA
WLS1D316FA
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Siemens
1600
WLS1D316FB
WLS1D316FB
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Siemens
1600
WLS1D316FC
WLS1D316FC
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Siemens
1600
WLS1D316FD
WLS1D316FD
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Siemens
1600
WLS1D316FE
WLS1D316FE
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Siemens
1600
WLS1D316FF
WLS1D316FF
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Siemens
1600
WLS1D316FG
WLS1D316FG
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Siemens
1600
WLS1D316FH
WLS1D316FH
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Siemens
1600
WLS1D316FJ
WLS1D316FJ
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Siemens
1600
WLS1D316FK
WLS1D316FK
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Siemens
1600
WLS1D316FL
WLS1D316FL
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Siemens
1600
WLS1D316FN
WLS1D316FN
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Siemens
1600
WLS1D316FP
WLS1D316FP
Limited Stock
From
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Siemens
1600
WLS1D316FQ
WLS1D316FQ
Limited Stock
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Siemens
1600
WLS1D316FR
WLS1D316FR
Limited Stock
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Siemens
1600
WLS1D316FT
WLS1D316FT
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From
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Siemens
1600
WLS1D316FU
WLS1D316FU
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From
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Siemens
1600
WLS1D316FW
WLS1D316FW
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.