Reliance Controls 510C Generator Transfer Switch, 50 Amp, 120 VoltHighlights: Dimensions : 13" height x 11. 75" width x 4. 5" depth Suitable for hardwire connection to PB50 power inlet box Switch has 10 toggle switches to control the circuit breakers under generator power It is set up at the factory to be connected to a double pole 30 amp breaker (to control a central air conditioner or electric water heater), a double pole 20 amp breaker (to control a well pump) and six 15 amp 120 volt circuit breakers Integrated,