A circuit breaker overheating beyond normal operating parameters is typically caused by one of three primary electrical issues: an overloaded circuit drawing continuous current near or above its rated amperage capacity, loose terminal lug connections where branch wires attach to the breaker creating high electrical resistance, or internal component degradation and contact pitting from age. When resistance increases at terminal connections or internal contacts, current flow generates intense localized heat that can melt plastic housing. You can troubleshoot electrical panel safety safely by avoiding bare components and checking panel temperatures. You can verify that your corrective action is successful when having a licensed professional electrician tighten terminal screws, redistribute heavy electrical loads, or replace an overheating breaker ensures safe operation.
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