OpenSprinkler › Forums › Hardware Questions › OpenSprinkler › AC power draw › Reply To: AC power draw
June 27, 2019 at 9:56 am #61386
The controller itself draws about 1 to 1.5 Watt power, excluding any active solenoid. So that’s about less than 100mA drawn from the 24VAC power adapter. Any activated solenoid will draw additional current, usually 500-ish mA for inrush and 250mA stable (holding) current.