N
Nick
- Jan 1, 1970
- 0
I'm wanting to switch a 400W 240V electronic MH balast from a relay,
and possibly a small switchmode 12V/5V supply from either the same or a
different relay. As it could affect relay selection, I was wondering
whether these type of supplies should be classified as resistive or
inductive? I could play safe and go for a heavy duty power relay having
excessive capacity, but would prefer not to over-design the solution if
a smaller PCB relay with, e.g. 10A 240Vac resistive rated contacts,
would do. If relevant, the initial power drawn by the balast is around
100W, ramping to 400W over a couple of minutes. Maybe these are
obviously inductive, but I'm unsure with these type of supplies. Also,
I suppose that the balast need not contain a transformer at all, but
it's sealed in epoxy so I'd need to ask the manufacturers about that.
Advice most welcome!
and possibly a small switchmode 12V/5V supply from either the same or a
different relay. As it could affect relay selection, I was wondering
whether these type of supplies should be classified as resistive or
inductive? I could play safe and go for a heavy duty power relay having
excessive capacity, but would prefer not to over-design the solution if
a smaller PCB relay with, e.g. 10A 240Vac resistive rated contacts,
would do. If relevant, the initial power drawn by the balast is around
100W, ramping to 400W over a couple of minutes. Maybe these are
obviously inductive, but I'm unsure with these type of supplies. Also,
I suppose that the balast need not contain a transformer at all, but
it's sealed in epoxy so I'd need to ask the manufacturers about that.
Advice most welcome!