This Zinsco/GTE/Sylvania/Challenger/T&B 1-Pole 20 Amp 120v Q120 Type Q Plug-In Circuit Breaker features a dependable design built to last. This circuit breaker is designed to meet UL 489 standards, meaning you can count on it to provide reliable protection against electrical overload.
Flawed breakers are chipped in various ways. Please see photos.
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