Lockout Delay - Prevents Rapid Recycling of Compressor in Air Conditioning, Refrigeration, and Heat Pump Equipment. (The delay begins when the thermostat opens.) Random Start Delay - Helps Prevent Low Voltage Starting Caused by Momentary Overloading of the Supply Lines when power is applied. Delay on Make Timer - Optional Two Terminal Series Connection. Totally Solid State 1 Amp Rated Output 24VAC to 230VAC in 2 Ranges Encapsulated to Protect Against Shock, Vibration, and Humidity UL Recognized, CSA Certified, U.S. Patent # 5809793