Federal Pacific Stab-Lok Panel
Also called: FPE panel, Stab-Lok
⚡ Electrical — a term you may see in your inspection report.
What is a Federal Pacific Stab-Lok panel, and is it dangerous?
A Federal Pacific Electric (FPE) Stab-Lok panel is an electrical panel installed in millions of American homes from the 1950s into the early 1980s. Independent testing has found that some Stab-Lok breakers can fail to trip during an overload — meaning the breaker may not cut power when it should. A home inspector can identify the panel and report it, but cannot test whether individual breakers will trip. My report recommends evaluation by a licensed contractor, and repair or replacement if necessary. If a home you're buying has one, it belongs on your list of things to look into before closing.
- Typical era
- 1950s to early 1980s
- How I spot it
- "Federal Pacific Electric" or "Stab-Lok" on the panel label; breaker toggles often have a red or orange stripe
- My role
- Identify, photograph, and report — not test
- What I recommend
- Evaluation by a licensed contractor; repair or replace if necessary
What it actually is
It's a brand of electrical panel, not a type. Federal Pacific Electric sold Stab-Lok panels for decades, and they were installed in a great many homes built during that stretch. The concern isn't the box on the wall — it's the breakers inside it, and specifically whether they do the one job a breaker exists to do.
Why it matters in East Texas
These still turn up regularly in Tyler-area homes built in the 1960s and 1970s, and in the older neighborhoods around Longview, Kilgore, and Gladewater. I don't consider finding one unusual. What I do consider unusual is a buyer who's been told about it before they get my report.
What I do when I find one
I photograph the panel label and the breaker layout, note it plainly in the report, and recommend it be evaluated by a licensed contractor and repaired or replaced if necessary. I don't test breakers — that's outside what a visual inspection can responsibly do, and a breaker that trips once on a bench doesn't tell you much about the other twenty.
What it means for you
This is not an evacuate-the-house finding. It's a known-issue finding — something to price in, ask about, and have looked at by someone licensed to do that work. It's also worth a call to your insurance agent, because some carriers ask about panel brand.
More electrical terms: Knob & Tube Wiring · Zinsco Panel · Double-Tapped Breaker · GFCI Outlet · AFCI Breaker
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