Free Encyclopedia of Building & Environmental Inspection, Testing, Diagnosis, Repair

Ask a Question or Search InspectAPedia

• HOME
• AIR CONDITIONING
• ELECTRICAL
• EXTERIORS
• HEATING
• HOME INSPECTION
• INTERIORS
• PLUMBING
• ROOFING
• SEPTIC SYSTEMS
• STRUCTURE
• WATER SUPPLY

• ENERGY SAVINGS
• ENVIRONMENT
• INDOOR AIR IAQ
• INSULATION
• MOLD INSPECT TEST REMOVE
• NOISE
• ODORS
• SOLAR ENERGY
• VENTILATION
• EXPERTS DIRECTORY
• CONTACT US

We recommend that residential FPE Stab-Lok electrical panels be replaced entirely or the entire panel bus assembly be replaced entirely, regardless of model number or year of manufacture. We recommend against replacing individual FPE Stab-lok circuit breakers. We do not sell circuit breakers nor any other products. For more information see FPE REPLACEMENT PANELS and FPE REPLACEMENT BREAKERS. This page assists in identifying Federal Pacific Electric Stab-Lok electrical panels and circuit breakers. More FPE information is in the links at page left.

This document describes how to identify Federal Pacific Stab-Lok Electric Panels when there are no markings or labels visible on the panel or its cover, and when you do not see labels on the equipment. This is FPE Stab-Lok identification information 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.

© Copyright 2012 InspectAPedia.com, All Rights Reserved. Information Accuracy & Bias Pledge is at below-left. Use page top links to major topics or use links at the left of each page to navigate within topics and documents at this website. Green links show where you are in a document series or at this website.

IF NO LABELS - What if there are no labels on my FPE Electric panel? How can I tell if it is a "Stab-Lok" model?

If no electrical panel or circuit breaker labels are visible, the circuit breakers themselves are pretty distinctive as you saw in the photos listed above. The design of the FPE panel bus to which the circuit breakers connect will be unique (of a couple of designs in an "E" or "F" shaped opening - they look similar). So if more investigation is warranted, a visual inspection of other panel internal details can confirm that it is one of several FPE Stab-Lok designs, the "F" shaped bus or the "E" shaped buss. This step requires use of a licensed electrician, as it is necessary to remove the panel cover, and possibly to remove one or two circuit breakers to look at the buss connectors on the bottom of the breaker or at the bus itself in the panel.

SAFETY WARNING - FATAL SHOCK HAZARD - If it is necessary to remove an electric panel cover to inspect the panel interior, buses, or other components, you should hire a licensed electrician for that purpose. Unless you are a licensed electrician, DO NOT REMOVE ELECTRIC PANEL COVERS, DO NOT INSERT TOOLS INTO ELECTRIC PANELS, DO NOT TOUCH LIVE ELECTRICAL PARTS such as screws, buses, bare wires, or anything that is inside of the electric panel.

Federal Pacific Stab-Lok Electrical Panel Breaker Bus Designs Can Identify FPE Equipment

The shock hazard warning issued above does not prohibit unlatching and swinging open the normal hinged panel covers provided for use by the homeowner to permit access to circuit breaker switches themselves. The warning refers to disassembling, unscrewing, or otherwise modifying or operating on an electric panel. Live wires and contacts inside of an electric panel can, if touched, cause fatal shock - death. If you are uncertain of what is safe to touch, do not touch any part of the equipment.

• Photo of the interior of an FPE Stab-Lok panel - note the "E" shaped opening on the "Stab-Lok" buss.
• Close up photo of the interior of an FPE Stab-Lok panel - note the "E" shaped opening on the "Stab-Lok" buss.

Details of how to recognize FPE Stab-lok panel bus designs are given at FPE PANEL BUS DESIGNS

Canadian FPE panels were made and look about the same, have an identical bus design (not visible without disassembly), but are labeled "Federal Pioneer".

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.

Readers of this article should also see Federal Pacific Electric Panels: Fires Waiting to Happen and The Federal Pacific Electric FPE Panel/Breaker Hazard Summary - the main FPE Hazard Website.

Questions & Answers regarding this article

.

Share this Article      

...

Technical Reviewers & References

• InspectAPedia.com^® - Daniel Friedman - Publisher & Editor.
• InspectAPedia Bookstore lists recommended books, organized by topic & available for purchase. Most of our articles also include a list of recommended books for the specific article topic as well as other references, and information sources.
• Critique, contributions wanted: Contact Us to suggest corrections or additions to articles at this website, and if you wish, to receive online listing and credit as a contributor. Particular thanks are due to the many experts and also consumers who read and critique technical articles at InspectAPedia.com.
• Additional technical contributors & reference sources for this article are listed below.

Use links just below or at the left of each page to navigate this document or to view other topics at this website. Green links show where you are in our document or website.

FPE Stab-Lok HAZARDS & REPAIRS WEBSITE

• Timothy Hemm, Yucala, CA, contributed the photographs of FPE equipment installed in California buildings. Mr. Hemm can be contacted at TimHemm@yahoo.com
• Arlene Puentes, an ASHI home inspector in Kingston, NY, contributed the page top and example photograph of a bank of FPE adjacent electrical panels. Ms. Puentes can be contacted at ap@octoberhome.com
• Jon Bolton, a home inspector, the Inspectigator, FL, contributed the "camouflage" breaker. Mr. Bolton can be contacted at teamattitude@hotmail.com
• Mary DeMuth, a property owner, contributed the Texas Federal Pacific Electric Load Center photos, May 2006.
• Thomas M. Pino, a professional home inspector, contributed photos of the 100A Texas FPE panel used in a condo. www.sweetwaterhomeinspection.com. Mr. Pino can be contacted at sweetinspect@houston.rr.com or at sweetwaterhomeinspection@yahoo.com
• The remaining photographs on this page were made by the web author

Books & Articles on Building & Environmental Inspection, Testing, Diagnosis, & Repair

• Our recommended books about building & mechanical systems design, inspection, problem diagnosis, and repair, and about indoor environment and IAQ testing, diagnosis, and cleanup are at the InspectAPedia Bookstore. Also see our Book Reviews - InspectAPedia.
• Aluminum Wiring Information Website Aluminum Electrical Wiring Hazards and Repairs: in-depth authoritative info, photos, documents including selection of proper vs. ineffective repair methods. E.g.: Ideal 65 "Twister" purple connector fails in field and lab testing with aluminum wire.
• Ampacity of an Electrical Service: How to determine the electrical service size or ampacity entering a building
• Circuit Breaker, a bad one fails to trip failure at aluminum bus-to-circuit breaker connection - field report and photographs
• Electrical System & Wiring Hazard Inspection, Detection, Cause, Remedy, Prevention - Main Electrical Page
• Electrical Panels, How to Inspect in buildings, safety for electrical inspectors, electrical panel, fusing, wiring defects, defective products. Inspection Class Presentation

• The Federal Pacific Stab-Lok Electric Panel Hazard Website Safety Information for Consumers.
• 2007 FPE Stab-Lok TECHNICAL REPORT - an updated test report of independent testing (a large 1.2MB PDF file) using a larger pool of FPE Stab-Lok circuit breakers than the older CPSC and Wright Malta tests found significantly higher failure rates of FPE Stab-Lok circuit breakers, including a look at critical safety failures (breaker failed to trip at 200% of rated current or jammed) which found up to 80% failure rate for FPE Stab-Lok GFCI circuit breakers (n=4), 12% failure rate for double pole FPE Stab-Lok circuit breakers (n=120), and a 1% failure rate for FPE Stab-Lok single pole circuit breakers (n=345).
• FPE FIRES: Failures continue: FPE breaker fails, results in fires: field reports
• Federal Pacific Electric Fires Waiting to Happen, Debate Waiting to Be Ended, detailed article
• Home Inspection Reporting Language and discussion for FPE panels
• Home Inspection Reporting Language and discussion for FPE panels
• How to Identify FPE Federal Pacific Stab-Lok Electric Panels - is yours one of these? ALSO: A History of the FPE Stab-Lok Issue.
• Federal Pacific Electric Panels: Fires Waiting to Happen, Debate Waiting to Be Ended
• How to Identify Federal Pacific Electric Panels Stab Lok Breakers & History of the Federal Pacific Electric Stab Lok Hazard
• Replacement Circuit Breakers for FPE Stab-Lok Electric Panels? are not recommended
• Replacement Panels for FPE Stab-Lok load centers - options include conventional complete panel replacement and a less costly replacement of the panel interior load center/bus assembly
• Schneider Canada Federal Pioneer circuit breaker recall
• 1983 CPSC Investigation of FPE Circuit Breakers Safety Information for Consumers
• 1982 Reliance Electric Co. SEC Quarterly Report: Note C. reports litigation between Reliance and UV Liquidating Trust and contends that "... improper and deceptive practices were employed for many years to secure UL listings for Federal Pacific's circuit protective products..."
• 1980 Reliance Electric Co. Press Release: improper practices used to obtain UL Listing for most of FPE's circuit breakers and notes testing which indicates "possible defects." 1980, Reliance Electric Co.
• 1980 FPE - Exxon Buys A Scandal Along With A Company improper practices used to obtain UL Listing for most of FPE's circuit breakers and notes testing which indicates "possible defects." 1980, Reliance Electric Co.
  
  
• Safety Hazards and Safe Inspection Procedures for Electrical and Home Inspectors at Residential Electric Panels
• ...