PD52 240 VAC 50-Amp Automatic Transfer Switch Features Time delay circuit board ensures generator voltage is at a stable level before transfer occurs. Rugged, heavy duty, screw type wiring terminals ready to wire to connectors base. Ensure ease of wiring and prevents wiring errors. Easy to remove protective cover with wiring schematic inside. Metal enclosure for extra safety. AC Detect option available for auto generator start compatibility. 70 Amp neutral rating. 1 year limited warranty.