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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
WLS2D316NT
WLS2D316NT
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Siemens
1600
WLS2D316NU
WLS2D316NU
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Siemens
1600
WLS2D316NW
WLS2D316NW
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Siemens
1600
WLS2D316NY
WLS2D316NY
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Siemens
1600
WLS2D316P
WLS2D316P
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Siemens
1600
WLS2D316PA
WLS2D316PA
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Siemens
1600
WLS2D316PB
WLS2D316PB
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Siemens
1600
WLS2D316PD
WLS2D316PD
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Siemens
1600
WLS2D316PE
WLS2D316PE
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Siemens
1600
WLS2D316PF
WLS2D316PF
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Siemens
1600
WLS2D316PG
WLS2D316PG
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Siemens
1600
WLS2D316PH
WLS2D316PH
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Siemens
1600
WLS2D316PJ
WLS2D316PJ
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Siemens
1600
WLS2D316PK
WLS2D316PK
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Siemens
1600
WLS2D316PL
WLS2D316PL
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Siemens
1600
WLS2D316PN
WLS2D316PN
Limited Stock
From
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Siemens
1600
WLS2D316PP
WLS2D316PP
Limited Stock
From
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Siemens
1600
WLS2D316PQ
WLS2D316PQ
Limited Stock
From
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Siemens
1600
WLS2D316PR
WLS2D316PR
Limited Stock
From
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Siemens
1600
WLS2D316PT
WLS2D316PT
Limited Stock
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Siemens
1600
WLS2D316PU
WLS2D316PU
Limited Stock
From
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Siemens
1600
WLS2D316PW
WLS2D316PW
Limited Stock
From
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Siemens
1600
WLS2D316PY
WLS2D316PY
Limited Stock
From
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Siemens
1600
WLS2D316Q
WLS2D316Q
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.