I bought a 40 amp 120/240 breaker i was gonna hard wire a timer to the breaker with a 600 watt dualie with two hps. I wonder that wont even use half the amps is there a way to also run another wire with a 120 volt plug in from the breaker for fan, exhaust etc?
Your explaination of what you want is hard to understand. Use paint on your computer to explain how you want your circuit to work. I think I can help.