12v relay using elevated heaters

[BluegrassDan]

Does anyone foresee an issue controlling a relay using 12.6vdc heater voltage that is also elevated to around 70vdc?

 

[rock soderstrom]

Does anyone foresee an issue controlling a relay using 12.6vdc heater voltage that is also elevated to around 70vdc?

I never thought about it before, but DC Voltage means a potential difference between two points. If one of these reference points is globally higher than another third reference potential, the relay doesn't care as long as its max. voltage is not exceeded, right?

 

[BluegrassDan]

That's what I was thinking. There shouldn't be any situation where the higher voltage should matter. No 0v will be in proximity.

 

[ruffrecords]

Does anyone foresee an issue controlling a relay using 12.6vdc heater voltage that is also elevated to around 70vdc?

I have done it before without any problems.

Cheers

Ian

 

[BluegrassDan]

Thanks, all!