ULN2003 max input voltage?

[waqqas.qayyum1]

Re: ULN2003 max input voltage?

Sir the way I explained, I made the circuit like that. I removed all the board relays and connected external relays. I gave Neutral and Phase input to board. Before the board the board was getting R N B N Y N because the heating elements were getting current pass through the relays contacts. so i removed the relays and provided only N and Phase to the board. When i turn on the circuit it works normally but when i connect controller to the board the neutral fuse blows each time i connect the controller. I dont know what is the issue here.

[waqqas.qayyum1]

Re: ULN2003 max input voltage?

I need to provide R Y B to board. I think no need. board only need R phase for its controller electronics part and neutral. but 100mA fuse is blowing again and again after i connect room controlled device. Before room controlled device it is ok. I dont know what to do.