05/29/2026
Do you know what type of panel box your home has?
The list below are known fire hazard and should be replaced!!
If your unsure we are here to help.
We do these inspections and replacements all the time! Give us a call!
The five specific electrical panels and configurations recognized as high-risk hazards include:
1. Federal Pacific Electric (FPE) Stab-LokThe Hazard: The "Stab-Lok" circuit breakers inside these panels have a failure rate as high as 60% to 80%. They fail to trip when a circuit is overloaded, allowing electricity to continuously surge until the panel melts or ignites.How to Identify: Look for the "Federal Pacific Electric" or "FPE" logo printed on the front enclosure cover. The individual breakers inside typically feature a signature red stripe across their toggle switches.
2. Zinsco (and GTE-Sylvania)The Hazard: These systems utilize aluminum bus bars that easily corrode, causing internal electrical arcing and severe heat buildup. The breakers frequently melt directly onto the main bus bar. Once melted, the breaker can never trip—even if you manually flip it to the "off" position.How to Identify: Look for the "Zinsco" or "GTE-Sylvania" brand names on the panel door. Inside, the breakers are highly recognizable because they are distinctively long and color-coded with bright, multi-colored handle ties.
3. Challenger Electrical PanelsThe Hazard: Popular throughout the 1980s and 1990s, these panels feature a severe design flaw where the individual breakers overheat at the connection point to the bus bar. This creates a high risk of tracking shorts and localized electrical fires.How to Identify: Search the door or the paper matrix label inside for the "Challenger" brand name or logo. The word "Challenger" may also be stamped directly onto the plastic face of the individual circuit breakers.
4. Pushmatic (Bulldog) PanelsThe Hazard: Pushmatic panels do not use standard left-to-right toggle switches; instead, they utilize push-buttons. These internal mechanisms are grease-fed and naturally stiffen over time. If they aren't regularly exercised, the breakers permanently stick in the "on" position, rendering them unable to trip during a short circuit.How to Identify: Check for a "Bulldog" or "Pushmatic" brand stamp. The panel will instantly stand out due to its grid of rectangular, push-button switches.
5. Split-Bus Panels & Vintage Fuse BoxesThe Hazard: These are unsafe configurations rather than specific brands. Split-bus panels lack a single main breaker to shut off power all at once, while old fuse boxes are fundamentally incapable of safely supporting the massive electrical loads of modern household appliances. Both system types are highly prone to overloading and overheating.How to Identify: A split-bus panel will feature a top section with up to six master breakers labeled "Main" or "Service Disconnect," with no solitary master switch at the top. A fuse box uses screw-in, glass-faced circular fuses rather than mechanical switches.