I would have to say if you broke your rods, the motor would be big enough to melt a bathroom switch, or a wind up timer. The response with the motor contactor,( in the compressor world, we call this a mag start) would be the only correct help for you. But to help you properly set this up safely and to code we would need to know the volts, amps, and horse pwr. of new pump motor. If you woke up and the thing was running with broken rods, it was either toast to begin with, out of oil, or you broke a hose or pipe in the night? Anyway i'm guessing 20-30 amp 2pole? pwr. from brkr. into rated disconnect switch, then into mag start, then to compressor. On mag start there is on/off switch. If you can't remember to turn off this switch, it has a low enough current through it that you could bypass this and run through a wind up timer, NOT A PUSH BUTTON 1 5 10 15 MIN. TIMER! But a wind up timer rated for at least 15 amps and 1500 watts and I'm betting 240v for mag coil. Ask more if you need more.