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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
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Manufacturer
Amperage
WLL2F316FU
WLL2F316FU
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Siemens
1600
WLL2F316FW
WLL2F316FW
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Siemens
1600
WLL2F316FY
WLL2F316FY
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Siemens
1600
WLL2F316G
WLL2F316G
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Siemens
1600
WLL2F316GA
WLL2F316GA
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Siemens
1600
WLL2F316GB
WLL2F316GB
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Siemens
1600
WLL2F316GC
WLL2F316GC
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Siemens
1600
WLL2F316GD
WLL2F316GD
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Siemens
1600
WLL2F316GE
WLL2F316GE
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Siemens
1600
WLL2F316GF
WLL2F316GF
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Siemens
1600
WLL2F316GG
WLL2F316GG
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Siemens
1600
WLL2F316GH
WLL2F316GH
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Siemens
1600
WLL2F316GJ
WLL2F316GJ
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Siemens
1600
WLL2F316GK
WLL2F316GK
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Siemens
1600
WLL2F316GL
WLL2F316GL
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Siemens
1600
WLL2F316GN
WLL2F316GN
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Siemens
1600
WLL2F316GP
WLL2F316GP
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Siemens
1600
WLL2F316GQ
WLL2F316GQ
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Siemens
1600
WLL2F316GR
WLL2F316GR
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Siemens
1600
WLL2F316GT
WLL2F316GT
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Siemens
1600
WLL2F316GU
WLL2F316GU
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Siemens
1600
WLL2F316GW
WLL2F316GW
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Siemens
1600
WLL2F316GY
WLL2F316GY
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Siemens
1600
WLL2F316H
WLL2F316H
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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.