OpenSprinkler › Forums › Hardware Questions › OpenSprinkler › Does Open Sprinkler AC have power supply minimum/maximum amperage? › Reply To: Does Open Sprinkler AC have power supply minimum/maximum amperage? December 6, 2015 at 11:03 am #40922 RayKeymaster The trace width of each channel is 0.81mm (32mil) minimum so should withstand 1amp. The sum of current sources from the external COM wire, and returns to circuit ground with a minimum trace width of 1.12mm (44mil). The copper thickness is 1oz/sq^2.
