The exclusive Square D QO Visi-Trip instantly identifies a tripped circuit breaker with a red indicator window. The Visi-Trip reduces the number of call backs, as well as the chance that other circuits will be turned off accidentally. This breaker will work only in Square D branded residential panels. Provides overload and short circuit protection (240Vac). 10,000 Amperes Interrupting Rating (AIR). HACR type for use with air conditioning, heating and refrigeration equipment having motor group combinations and marked for use with HACR type circuit breakers. Option for padlocking breaker in "ON" or "OFF" position.