Guide to Federal Pacific Electric Internal Bus Designs
FPE PANEL BUS DESIGNS - CONTENTS: Federal Pacific Electric Stab-Lok® equipment identification by examination of the panel internal bus connections, shape, and opening types. Photo Guide to FPE Stab-Lok® Bus designs: E-bus, F-bus, punched bus, Z-clip, screw connections. Photographs of FPE Stab Lok electric panel bus connections and connectors aid in identifying this equipment even if no labels or markings are visible
POST a QUESTION or READ FAQs 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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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.
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.
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.
To identify the circuit breaker panels and breakers discussed 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.
Three Stab-Lok® bus designs were used in these panels and can be identified by an electrician on disassembly of some panel components.
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