Is it true that overheating is only found with Zinsco and FPE breakers?

Overheating can occur in various types of electrical breakers, not only with Zinsco and Federal Pacific Electric (FPE) breakers. While there have been specific documented issues with these brands, such as inadequate design and the potential for failure leading to overheating, other breakers from different manufacturers can also experience overheating due to various factors.

These factors may include poor installation, overloading the circuit, loose connections, excessive heat in the environment, or products that have simply aged and degraded over time. Thus, it is crucial to consider the broader context of electrical systems rather than limiting the discussion to just a couple of brands. Any breaker, if subjected to conditions that exceed its operational capacities, can overheat, making the assertion that overheating is exclusive to Zinsco and FPE breakers incorrect.