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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
WLL2F316PB
WLL2F316PB
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Siemens
1600
WLL2F316PC
WLL2F316PC
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Siemens
1600
WLL2F316PD
WLL2F316PD
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Siemens
1600
WLL2F316PE
WLL2F316PE
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Siemens
1600
WLL2F316PF
WLL2F316PF
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Siemens
1600
WLL2F316PG
WLL2F316PG
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Siemens
1600
WLL2F316PH
WLL2F316PH
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Siemens
1600
WLL2F316PJ
WLL2F316PJ
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Siemens
1600
WLL2F316PK
WLL2F316PK
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Siemens
1600
WLL2F316PL
WLL2F316PL
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Siemens
1600
WLL2F316PN
WLL2F316PN
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Siemens
1600
WLL2F316PP
WLL2F316PP
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Siemens
1600
WLL2F316PQ
WLL2F316PQ
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Siemens
1600
WLL2F316PR
WLL2F316PR
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Siemens
1600
WLL2F316PU
WLL2F316PU
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Siemens
1600
WLL2F316PW
WLL2F316PW
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Siemens
1600
WLL2F316PY
WLL2F316PY
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Siemens
1600
WLL2F316Q
WLL2F316Q
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Siemens
1600
WLL2F316QA
WLL2F316QA
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Siemens
1600
WLL2F316QB
WLL2F316QB
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Siemens
1600
WLL2F316QC
WLL2F316QC
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Siemens
1600
WLL2F316QD
WLL2F316QD
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Siemens
1600
WLL2F316QE
WLL2F316QE
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Siemens
1600
WLL2F316QF
WLL2F316QF
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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.