Federal Pacific Electric, usually shortened to FPE, made the Stab-Lok line of panels and breakers that went into a great many American homes decades ago. Plenty of them are still in service in Miami-Dade. Most owners never think about the brand until a home inspector, a 4-point inspector or an insurance agent writes it down. This guide explains how to tell whether you have one, what is actually known about the concerns, and how Florida insurers tend to treat it.
How to tell if you have one
You can usually answer the question without touching anything inside the panel:
- Read the door label. Open the outer door (not the inner cover) and look for the maker's label. Federal Pacific Electric, FPE, or the name Stab-Lok on the label or the panel front is the giveaway.
- Look at the breakers' faces. Stab-Lok breakers are often marked with the Stab-Lok or FPE name, and many are the thin style.
- Check the paperwork. A past home inspection report or 4-point inspection often lists the panel brand and model.
- Send a photo. If the label is gone or painted over, a clear photo of the door area and the breakers is usually enough for an electrician to tell.
InspectApedia keeps a large FPE identification file with photos of labels and breakers, which is useful if you want to compare. Please do not remove the inner cover (the dead front) to look. Live parts sit right behind it.
What the concern is
A breaker has one job that matters most: shut the circuit off when too much current flows, before the wire overheats. The worry with Stab-Lok breakers is that some may not trip when they should, and that a breaker that fails to trip leaves the wiring unprotected during an overload or short. Critics also point to how the breakers seat on the panel's bus. Because a breaker that will not trip looks exactly like one that will, there is no way for a homeowner to check it by looking at it or flipping it on and off.
What the CPSC said, exactly
This is the part most often misquoted, in both directions. The US Consumer Product Safety Commission investigated FPE Stab-Lok breakers and announced in 1983 that it was closing the investigation. Its release says Commission testing confirmed that certain FPE breakers failed some of the UL calibration requirements, the tests that check whether a breaker trips within set time limits under overload. It also says the Commission could not link those failures to a hazardous situation, that the data available did not establish a serious risk of injury, and that gathering better data would cost several million dollars, which it chose not to spend given its budget and other known hazards.
In 2011 the CPSC added a note to the same release, asking electricians, homeowners, home inspectors and real estate agents to read it carefully: the Commission closed the matter without making a determination as to whether the breakers are safe, or whether the manufacturer's position (that they are) is accurate. There was no recall. So the honest summary is: some tested breakers failed certain calibration tests, the federal agency neither declared the panels a hazard nor cleared them, and it said it could reopen the matter if new information warranted.
Independent researchers and inspection writers have gone further. The InspectApedia file above, for example, recommends replacing the panel or its whole bus assembly rather than swapping in replacement breakers. That is a published opinion from people who have studied these panels for years, and it is fair to weigh it, but it is not a federal finding.
Why Florida insurers and inspectors flag it
For most Miami owners, insurance is what forces the decision. Citizens Property Insurance's sample 4-point inspection form asks the inspector for the brand and model of the main panel and a photo of the open panel with its door label, so the brand reaches the underwriter whether anyone mentions it or not. Some carriers then exclude the brand: Universal Property & Casualty's Florida underwriting binding guidelines (10-24-18 edition) list "No Federal Pacific (includes Stab Lok), Zinsco, Sylvania-Zinsco, or Challenger-Zinsco Boxes" among their electrical requirements.
Every insurer writes its own rules, and they change. Ask your agent, in writing, what your carrier accepts before you schedule any work. If you are buying a house, ask before closing, because a panel replacement involves a permit and a utility appointment and cannot always be done overnight. Our guide to what to do when an insurer flags your panel walks through that conversation.
Your options
- Replace the panel. This is what most owners end up doing, because it settles the insurance question and puts new, listed breakers on a new bus. It is permitted work with an inspection and an FPL disconnect and reconnect. See what to expect on replacement day.
- Have it evaluated first. If your insurer accepts the panel and you are not under a deadline, an electrician can open it and look for heat damage, corrosion, loose connections and overcrowding, and tell you what condition it is in. Our electrical panel repair page describes that evaluation.
- Replacement breakers. New breakers made to fit Stab-Lok panels are still sold. A new breaker does not change the bus it clips onto or the brand on the label, so it rarely settles either the safety question or the insurance one.
If you are replacing anyway, it is the moment to size the new panel for what the house runs now. Our guide to 100 vs 200 amp service explains how that is decided, and what drives the cost of a panel replacement covers the rest of the scope.
Signs to act on now, whatever the brand
- A burning smell, buzzing or crackling at the panel.
- A breaker or the cover that feels hot.
- Scorch marks, melted plastic or discoloration.
- Rust or water marks inside the door, common on exterior walls and near the coast.
Any of these means call an electrician and do not use the circuit. Our guide to burning smells and buzzing covers what to do in the meantime, and the 9 signs a panel needs replacing list covers the rest.
Other older panels
FPE is one of several older brands insurers ask about. Zinsco and Sylvania-Zinsco panels have their own problems at the breaker-to-bus connection, and they are among the older panels we replace most often. Our guide to Zinsco and Sylvania panels covers them.
Questions people ask
Was Federal Pacific recalled?
No. The CPSC closed its investigation in 1983 without a recall and, as its 2011 note says, without a determination either way on safety.
My FPE panel has worked for decades. Is it about to fail?
Nobody can say that from the outside. The concern is not that it will stop working, but that a breaker might not trip when it needs to, which you would only find out during a fault. That uncertainty, plus insurance, is why most owners replace.
Can I just flip the breakers off and on to test them?
No. Flipping a breaker tests the handle, not whether it trips on overload. Leave testing to an electrician, and leave the cover on.
Do I have to replace it to sell my house?
No law requires it, but buyers' inspectors and insurers will note it, and a buyer who cannot get coverage cannot close. Many sellers deal with it before listing. See upgrades before selling.
Need it looked at?
KRW Electric (EC13012832) troubleshoots and repairs older panels, including Federal Pacific Stab-Lok panels flagged by insurers, in Pinecrest, Coconut Grove, South Miami and Miami Beach, with same-day service when scheduling permits. Call (305) 359-7312 and tell us what you are seeing. We will ask a few questions, tell you whether it sounds urgent, and give you the earliest time we have. Our before you call checklist covers what to have ready, and what happens on a repair visit explains the rest.
Reviewed by Kyle White, KRW Electric Company LLC — licensed electrical contractor EC13012832.
