Federal Pacific Electric FPE Stab Lok Circuit Breaker Identification Photos
FPE BREAKER ID PHOTOS - CONTENTS: How to identify FPE Stab Lok Circuti Breakers - Identification Photos for FPE Stab-Lok® Circuit Breakers. Stab-Lok® Circuit Breaker identification photographs; Pre-1970 FPE Stab-Lok® Circuit breaker identification photographs. Photographs of FPE circuit breakers, labels, and bus designs provide means to identify this equipment even if labels are missing or painted-over
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This document provides photographs and descriptions of FPE Stab-Lok® circuit breakers of various types and ages in order to assist in their identification.
Page top photo of an FPE Stab-Lok® circuit breaker is provided courtesy of electrical panel researcher David Carrier.
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.
Identification Photos for FPE Stab-Lok® Circuit Breakers
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.
See our complete list of Federal Pacific Electric (and its various name forms) electrical panels and circuit breakers found at FPE Stab Lok IDENTIFICATION. The molded-case FPE Stab-Lok® patent numbers seen on the FEP circuit breaker sides and FPE Stab-Lok® circuit breaker label close ups are at FPE BREAKER LABELS.
Stab-Lok® Circuit Breaker Photographs
Jeff Weissman contributed the photo below-left of a gray FPE Stab-Lok® circuit breaker. While the most common molded case circuit breaker is black in color, FPE Stab-Lok® breakers have been obseved in this gray color, an odd camoflage color mix that may have been a "one-off" fooling around on the production line.
On occasion a Federal Pacific Stab-Lok® Electrical Panel or Breaker manufacturing factory worker might experiment
with a mix of plastics in the circuit breaker case molding machine, photo courtesy of J. Bolton. Older FPE Stab-loks may have a brown molded case (see photos further below).
Below we show two sides of another "camouflage" multi-colored plastic case FPE Stab-Lok® circuit breaker provided by researcher David Carrier (May 2010). Notice that the two sides of the case were produced in different processes and most likely at different times. This mix-and-match product might be an indicator of frequent adjustments and experiments on the FPE Stab-Lok® equipment production line.
The FPE Stab-Lok® GFCI breaker at above left was for sale on eBay. FPE NB type breakers (above right) use a screw connection at the bus.
Below are photographs of a 40-Amp FPE Stab-Lok® breaker that help identify FPE Stab-Lok® equipment. Provided courtesy of electrical panel researcher David Carrier .
Pre-1970 FPE Stab-Lok® Circuit Breakers
Below are photographs, courtesy of electrical panel researcher David Carrier, that help identify older pre-1970 FPE Stab-Lok® circuit breakers that have the properties we have described at FPE Pre-1970 STAB-LOKS OK?
Below, two views of a 50-Amp double pole pre-1970 FPE Stab-Lok® circuit breaker. Below-left, the breaker bus-bar connectors; Below right, the FPE Stab-Lok® breaker wire connectors.
You'll notice that these older FPE Stab-Lok® models have copper parts and a hexagonal toggle switch.
At left our photo provides a side view of a similar-vintage 15-Amp single pole FPE Stab-Lok® circuit breaker discussed at FPE Pre-1970 STAB-LOKS OK?
The molded-case FPE Stab-Lok® patent numbers seen on the breaker sides and FPE Stab-Lok® circuit breaker label close ups are at FPE BREAKER LABELS.
At left: internal parts of an older, hexagonal toggle-switch FPE Stab-Lok® circuit breaker, courtesy of researcher David Carrier.
Below left and right, photos of a pre-1970 FPE Stab-Lok® 40-Amp double pole circuit breaker.
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Questions & answers on how to identify Federal Pacific Electric Stab Lok or FPE Stab Lok circuit breakers.
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Dr. Jess Aronstein, electrical engineer, Poughkeepsie, NY, forensic engineering services, independent laboratory testing for various agencies email@example.com (independent electrical panel testing, including FPE Stab-Lok® panels, to April 2010)
David Carrier, electrical engineer, 53 Henmond Blvd., Poughkeepsie, NY 12603 845-430-7527
Jon Bolton, a home inspector, the Inspectigator, FL, contributed the "camouflage" breaker. Mr. Bolton can be contacted at firstname.lastname@example.org
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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).
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..."
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