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Federal Pacific Electric Stab Lok Panels in a gangFederal Pacific Electric FPE Stab Lok Panel Cover Markings &
Index to FPE Catalog Numbers

  • POST a QUESTION or COMMENT about the markings and labels on FPE Stab-Lok® electrical panel covers, translation of FPE Electric Panel catalog numbers - does the label, year, or catalog number make a difference in the safety of the equipment?

This document describes how to identify Federal Pacific Stab-Lok® Electric Panels in buildings by examining readily available markings and names on the exterior of the electrical panel or just inside the hinged door intended to be opened by the consumer.

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.

InspectAPedia tolerates no conflicts of interest. We have no relationship with advertisers, products, or services discussed at this website.

- Daniel Friedman, Publisher/Editor/Author - See WHO ARE WE?

Photo Guide to Federal Pacific Electric Stab-Lok® EQUIPMENT COVER LABELS & MARKINGS

Photograph of a typical Federal Pacific Electric Stab-Lok® electric panel cover and door label

Photos of Federal Pacific Electric FPE Stab-Lok® Electric Panel/Circuit Breaker Identifying Labels and Markings How can you it is a "Stab-Lok® " model?

FPE PANEL COVERS - Photos of FPE panel cover and exposed circuit breaker markings

On panels of this vintage you may need to look not at the paper label on the FPE panel door, but rather on the panel face or cover itself for the words "Stab-Lok® " to identify Federal Pacific Electric Stab Lok panels. These identifying words may appear at the top or bottom of the panel face.

[Click to enlarge any image]

FPE panel hazards (C) Inspectapedia.com

FPE panel (C) Inspectapedia.com

FPE unsafe panel (C) InspectApedia.com

 

FPE Stab Lok 125A electric panel

FPE panel that had a no-trip 100A breaker (C) InspectApedia.com

More FPE panel cover examples are at these links:

Horizontal-Mount FPE Panel Covers

Photo of horizontal mount FPE Stab-Lok® electrical panel

More FPE Covers: Arkansas, California, Texas

 

Federal Pacific Electric Meter Covers, Main Switch FPE Meter Base

This topic has moved to its own page now

at FPE ELECTRIC METER BASE & BREAKERS

Below: an FPE electric meter and breakers at a residential property:

FPE electric meter base with Stab Lok breakers (C) InspectApedia.com Portola 2010 ... FPE electric meter base with Stab Lok breakers (C) InspectApedia.com Portola 2010

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Reader Comments, Questions & Answers About The Article Above

Below you will find questions and answers previously posted on this page at its page bottom reader comment box.

Reader Q&A - also see RECOMMENDED ARTICLES & FAQs

On 2019-11-05 by (mod) -

Tim

Thank you for asking why FPE panels are a concern - your question points out that I need to link to that information on this page..

FPE panels have several hazards that make them unsafe, risking fire or shock well beyond normal risk levels for electrical panels.

For example FPE double pole breakers fail to trip in response to an overcurrent roughly 60% of the time; there are other unreliable breaker brands as well, but most breakers fail to trip at a miniscule fraction, roughly 0.01 % of the time.

A circuit breaker is a cricitical electrical system safety device. But breaker that doesn't trip when it should is failing to protect the building and its occupants from a fire or shock.

See this summary at FPE HAZARD SUMMARY for a quick overview.

A comparison showing both good performing and several bad performing circuit breakers is

at CIRCUIT BREAKER FAILURE RATES

On 2019-11-05 by Tim Dippel

Why are these panels a Concern. This house was probably built in 61 or 63. We’ve been here for 33 years no major problems that I’m aware of. Just had a 200 amp main panel installed Outside a few years ago after Limb pulled off service line from house. So I guess this federal is now a sub panel.

Why are these panels [photo above by Mr. Dippel] a Concern?

This house was probably built in 61 or 63

On 2018-04-03 by (mod) -

We have little data on commercial FPE equipment IF, in fact, it actually differs in design. If the breakers connect to an E- or F-type bus and use a similar internal design or if they were in fact residential breakers re-labelled (as FPE did from time to time) the same concerns would apply.

On 2018-04-02 by bobhackel21

I have an FPE circuit breaker model 318-36 with a Stab-Lok panel installed in a commercial building. Is this panel a safety issue and/or included in the recommendation for replacement?
Thanks,

On 2017-09-29 by (mod) -

Thank you for the comment WU

On 2017-09-29 by WebUser

Concerning the below information, the L120-40, is NOT labeled saying MAX breaker size is 40A. The label says MAX NUMBER OF BREAKERS is 40

"Stab-Lok® 200-A panel center printing - Texas - At its bottom this FPE Electric Panel is marked at its "bottom front as "Federal Pacific Electric Company Newark NJ". Incidentally, notice that 50-A double pole breaker just up from bottom left? FPE Model# L120-40 was labeled (as you can see in the Texas FPE panel door label photo below) as accepting a maximum 40A breakers"

On 2016-02-22 by (mod) -

Nancy not all FPE Stab-Lok panels bear a clear identification with that name. In the links just above you 'll see an ARTICLE INDEX for FPE topics and there you will see articles on HOW TO IDENTIFY AN FPE STAB-LOK PANEL (or search InspectApedia for that term)

If your panel is an FPE Stab-Lok design, there are: ample research, product history, legal proceedings, field failure reports, records of cheating on testing, class action litigation (New Jersey only), and other evidence that all form compelling argument that the panel should be replaced. It does not initiate a fire, but the panel has an abnormally high probability of failing to offer the overcurrent, or fire protection that is expected and required of an electrical panel. Its performance was far worse than most in the industry.

On 2015-09-12 by Nancy

Nowhere on my electrical panel does it say the words "Stab-Lok." Is it still a fire hazard?


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Continue reading at FPE PANEL DOOR LABELS or select a topic from the closely-related articles below, or see the complete ARTICLE INDEX.

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Suggested citation for this web page

FPE PANEL COVERS Stab-Lok® at InspectApedia.com - online encyclopedia of building & environmental inspection, testing, diagnosis, repair, & problem prevention advice.


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INDEX to RELATED ARTICLES: ARTICLE INDEX to FPE STAB-LOK BREAKERS & PANELS

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