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ZINSCO SYLVANIA ELECTRICAL PANELS
This document describes how to identify Federal Pacific Stab-Lok® Electric Panels in buildings by providing details of the different but unique internal bus designs in this equipment. This is an FPE Stab-Lok® panel identification aid for building inspectors, home buyers, home owners, electricians exploring the background of possible hazards associated with Federal Pacific Electric Stab-Lok® circuit breakers and service panels.To identify the circuit breaker panels and breakers discussed here at the FPE information website you should also look for the product name "Federal Pacific Stab Lok" or "Federal Pioneer Stab Lok" on the equipment.
Replacement FPE Stab-Lok® circuit breakers are unlikely to reduce the failure risk of this equipment. We recommend that residential FPE Stab-Lok® electrical panels be replaced entirely or the entire panel bus assembly be replaced, regardless of FPE model number or FPE year of manufacture. We do not sell circuit breakers nor any other products.
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Photo Guide to FPE Stab-Lok® Circuit Breaker Bus Designs: the E, F and Z-clip FPE bus openings can identify this equipment
Watch out: Safety warning - while opening the hinged door provided for consumer use to access and reset the breakers is permitted, because there is risk of dangerous or even fatal electric shock in any electrical panel interior, only an expert should actually remove the front cover. Since there is risk of dangerous or even fatal electric shock, only an expert such as a licensed electrician, electrical engineer, or home inspector should physically remove the front cover to permit inspection of the panel bus and other interior features.
Three Stab-Lok® bus designs were used in these panels and can be identified by an electrician on disassembly of some panel components.
More FPE Electrical Panel Bus design identifying photos are at "2004 FPE Update: St. Louis ASHI Seminar including: Hazard Summary & Independent Tests confirms Stab-Lok® failures"
If all product identification labels have been removed, look at the various photos of FPE panels which you can find in this article below, at the Federal Pacific Electric Stab Lok Panel website, and at several of the articles at that website, such as Hazardous FPE Circuit Breakers and Panels.
See HOW TO ID FPE IF NO LABELS for detailed guidance on identifying painted-over or un-labeled electrical panels as Federal Pacific Electric Stab Lok equipment.
WHAT IF THERE ARE LABELS but NO VIEW of the PANEL BUS - Can I Identify a FPE Stab-Lok® ?
Frequently Asked Questions (FAQs) about FPE panel breaker bus connections & designs
Questions & answers or comments about the FPE Stab Lok Federal Pacific Electric bus design, openings, and shapes including the E shaped holes, F shaped holes, rectangular bus punchouts, and Z-clip screw connectors.
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Technical Reviewers & References
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