DavidB
Member
Anyone have a more definite answer on the max current. I ask cause on the relay board the 12v is jumpered to the regulator. But says this on the info page:
I have a 1amp transformer supplying the Master Hub board and the powering the temp sensors. If I remember correct the coil current on these relays is 40mA each @ 5v. So it would depend on how many relays your turning on at time, mine would have max of 3 on. The contact voltage is from another source, so was wondering if that perhaps is what the warning was about or if was about the Coil current. I can supply it with another transformer and remove the jumper. But was wondering what others are doing.
The relay board requires supplemental power. Due to the current it draws, which is high for a 1-Wire circuit, it should be powered locally and not over the CAT-5 cable.
I have a 1amp transformer supplying the Master Hub board and the powering the temp sensors. If I remember correct the coil current on these relays is 40mA each @ 5v. So it would depend on how many relays your turning on at time, mine would have max of 3 on. The contact voltage is from another source, so was wondering if that perhaps is what the warning was about or if was about the Coil current. I can supply it with another transformer and remove the jumper. But was wondering what others are doing.