Zinsco Electrical Panels


Zinsco panels often can fail to operate properly and may leave homes and homeowners at risk to both fire and electrical shock. These panels can work fine for years, but as homes have increased energy demands, these panels may overheat and portions of it melt.

Zinsco Panel

If a breaker melts to the bus bar of the panel and can no longer adequately trip in case of an overcurrent or short circuit, an extreme amount of power from the outside electrical supply surges into a home’s panel and circuits. Once that happens, it cannot be stopped or shut off manually. Electricity will burn until it runs out of fuel or the wires melt. The panel could overheat and catch fire, causing serious harm to a home and its occupants.

Courtesy of Don Hester/NCW Home Inspections

Zinsco panels may seem to work properly for years. But experts warn that these panels may present numerous problems and even hazards if and when they fail. In fact, one expert warns that as many as 25% of all Zinsco circuit breakers could fail to trip in response to an overcurrent or short circuit and create a possible hazardous situation.

Problems with certain Zinsco panels cannot be seen by the naked eye. Even after the cover of Zinsco panels has been removed, everything can seem to be in fine working order. Upon exploring its components, electricians find that breakers cannot be removed from the bus bar. They’ve welded together, which indicates that the breakers have melted. In that condition, a breaker would be unable to trip and may be allowing an unsafe amount of electricity into the home! This could lead to a potential fire.