Hello all,
I have been following EEVBlog channels on youtube for a long time now, however building a little project I am after some advice.
The project I am building is a control box for a solenoid valve. I have wired a switch for the function through a Standard Automotive 4 Pin 30A Relay, then from the relay out to the solenoid coil on the valve.
The only spec's I have on the coil at the moment are 12V DC and 2.5A.
My question is; Is it completely necessary to run a snubber protection diode to protect the relay contacts from the high voltage when the coil is de-energised or will the relay contacts be robust enough to withstand voltage spikes. I also do not want any voltage spikes feeding back into the power supply to the circuit. Also please be aware that the entire control box is built inside an electrical enclosure and I am not making any PCB's so everything is mounted and fed with wires. So if i can get away without using any feed back protection it will make it a lot easier and neater.
Apologize if this belongs in the beginner section but being new to this forum I thought I would give it a go here.