Independent testing
Engineer Dr. Jesse Aronstein studied Stab-Lok breakers for years. Insurer AmTrust reports that his testing found about 51 percent of the breakers tested failed to trip as they should.
Panels & safety
Is a Federal Pacific Panel Dangerous? What NJ Homeowners Should Know Before an Emergency
If a home inspector, insurance agent or neighbor told you your Federal Pacific panel is a problem, you probably have questions. This guide explains what the testing showed, why New Jersey takes these panels seriously, and how to decide what to do, without scare tactics.
If your panel is hot, buzzing or smells burnt right now, don't keep reading. Call a licensed electrician for emergency help.
- Written by licensed electricians
- New Jersey code
- Local to Monmouth County
The short answer
Federal Pacific Stab-Lok panels have a long record of breakers that may not trip during an overload or short. There was never a formal recall, but a New Jersey court found FPE violated the state's Consumer Fraud Act, and independent testing found high failure rates. Most electricians recommend replacing the whole panel rather than the breakers.
Background
A Short History of Federal Pacific Electric
To understand the concern, it helps to know where these panels came from.
Federal Pacific Electric (FPE) was one of the biggest makers of home electrical panels in the United States from the 1950s into the 1980s. Its Stab-Lok panels and breakers went into millions of homes, including many built during Monmouth County's suburban boom.
The company later came under the ownership of Reliance Electric. Federal Pacific no longer makes these panels, but plenty are still working in basements and garages today.
Why it matters now
A panel is a safety device. Its breakers are supposed to shut off power when a wire is overloaded or shorted. Questions about FPE are really questions about one thing: will the breaker trip when it has to?
Most of the time nothing goes wrong, because most of the time nothing is overloaded. The concern is the rare moment when something does go wrong.
The evidence
What Testing Found About Stab-Lok Breakers
Here's what the record actually shows, without the hype.
The CPSC investigation
The U.S. Consumer Product Safety Commission looked into FPE breakers and closed its investigation in 1983, citing limited resources and "insufficient data" to either confirm or rule out a hazard.
The New Jersey court case
In 2002, a New Jersey Superior Court found FPE had violated the state's Consumer Fraud Act by selling breakers that didn't meet the testing standards printed on their labels.
What can happen
What a Breaker Failure Looks Like in Real Life
The danger isn't usually dramatic. It's quiet.
When a normal breaker sees too much current, it trips in seconds and the lights go out. You reset it and move on.
When a breaker fails to trip, nothing seems wrong at first. The circuit keeps running. But the wire behind the walls keeps heating up. Over time that heat can damage insulation and, in the worst case, start a fire inside a wall where you can't see it.
Signs to take seriously
- A breaker that feels warm or looks discolored
- A breaker that won't switch off, or switches off but the power stays on
- Flickering lights on one circuit
- A burning smell near the panel
See any of these? Turn off the main breaker if it's safe and call a 24 hour emergency electrician.
Check your panel
How to Tell If You Have a Federal Pacific Panel
You can usually tell in under a minute, without touching anything inside.
Open the panel door, not the cover
The door swings open. The metal cover behind it, called the dead front, should stay on.
Look for the names
Check the label and breakers for Federal Pacific Electric, FPE, Stab-Lok, or Federal Pioneer.
Look at the breakers
Many Stab-Lok breakers are thin with colored handles and a different look from modern breakers.
Take a photo
If you're unsure, a clear photo of the label and breakers is often enough for an electrician to tell.
Not sure what else to look for in an old panel? Our article on 100 vs 200 amp service explains how to read your panel's size too.
Your options
What Should You Do If You Have One?
There are only a few real choices.
| Option | What it means | Our view |
|---|---|---|
| Leave it alone | Keep using the panel as is | Your choice, but it leaves the testing concerns in place |
| Replace breakers only | Swap old Stab-Lok breakers for new ones made to fit | Not recommended. The panel's original design and bus stay in place |
| Replace the whole panel | Install a new panel and breakers from a current brand | The fix most electricians and inspectors recommend |
Timing tips
- Planning to sell? Replace before listing so it isn't a buyer's inspection surprise
- Adding an EV charger or generator? Do it all in one permit
- Insurance renewal coming? Ask your agent whether they require replacement
What replacement involves
Most panel swaps take one working day, with a permit and township inspection. Details are on our Federal Pacific panel replacement page.
Keep reading
More Guides From Our Electricians
Plain-English answers to the questions homeowners ask us most.
Brands & service areas
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Help Across Monmouth and Middlesex County
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Questions Readers Ask
Was there a recall on Federal Pacific panels?
No. The CPSC closed its investigation in 1983, saying it lacked the resources and data to reach a conclusion either way.
What percentage of Stab-Lok breakers fail?
Testing reported by Dr. Jesse Aronstein found about 51 percent of the Stab-Lok breakers tested failed to trip properly.
Can I just replace the breakers?
Replacement breakers exist, but they leave the original panel design in place. Most electricians recommend replacing the whole panel.
Will my homeowners insurance cover a house with an FPE panel?
Some insurers ask for replacement before writing or renewing a policy. Ask your agent.
How do I know if my panel is Federal Pacific?
Look for Federal Pacific Electric, FPE or Stab-Lok on the panel label or breakers. Don't remove the inner cover.
Think You Have a Federal Pacific Panel?
Send us a photo or book a same-day panel check with a licensed electrician. We'll tell you exactly what you have.
(732) 419-5195