Designed to restrict let-through energy, the Eaton FCL3015 is a 15A, 3-pole current-limiting circuit breaker for industrial facilities. It utilizes fixed thermal-magnetic trip technology to quickly clear severe faults, protecting sensitive downstream components from damage. This legacy F-frame device mounts into Eaton Series C panelboards and switchboards. It provides a seamless replacement solution for aging Westinghouse systems. Rated 200kAIC at 240V, it is succeeded by the FDC3015 series.
Current Limiting, High Interrupting Capacity, HACR Rated
Special Features
Current Limiting
Product FAQs
8 answers
What panelboards are compatible with the FCL3015?
This breaker is designed for use in Eaton Series C panelboards, as well as compatible industrial switchboards and motor control centers.
Can I install the FCL3015 in a standard residential load center?
No. The FCL3015 is an industrial molded case circuit breaker. It requires a bolt-on connection and will not fit in standard residential plug-on load centers like the Eaton BR or CH series.
Are Westinghouse and Eaton FCL3015 breakers the same?
Yes. Eaton acquired the Westinghouse distribution equipment line and integrated it into their Cutler-Hammer division. An FCL3015 branded as Westinghouse, Cutler-Hammer, or Eaton represents the same physical breaker and is fully interchangeable.
What does the FCL frame designation mean?
The FCL designation indicates that this is a current limiting version of the standard Eaton or Westinghouse F-Frame breaker. It shares the same physical footprint as standard F-Frame breakers but provides significantly higher interrupting ratings.
What does the current limiting feature of the FCL3015 do?
As a current limiting breaker, the FCL3015 is designed to clear a high-level fault in less than half a cycle. This rapid action significantly reduces the let-through energy and peak current, providing enhanced protection for downstream circuits and equipment.
Are the trip settings on the FCL3015 adjustable?
No. This breaker features a fixed thermal and fixed magnetic trip unit. It provides standard long-time and instantaneous (LI) protection without adjustable dials.
What wire sizes do the lugs on the FCL3015 accept?
The factory lugs on this breaker accommodate conductors ranging from 14 AWG up to 1/0 AWG. Always verify the specific lug markings for copper or aluminum compatibility and follow the manufacturer torque requirements during installation.
Can the FCL3015 be used as a plug-on breaker?
No. The FCL3015 is a unit mount, bolt-on circuit breaker. It requires bolted connections for secure installation in panelboards or switchboards and is not compatible with plug-on chassis designs.
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