> An old but true rule of thumb for motor startup current is at least
> 6 x the full load rated current, so that might help you in finding an
> appropriate relay.

That could make finding a DIL relay a bit tricky for the larger motor

Re the snubber - pity it doesn't affect in-rush. I've already included
filter components (ceramic caps and zeners) to minimise hash etc.

> PWM with a transistor of some type (plus flyback diode).

I had an IRFZ34 sketched in before I saw the larger motor. PWM
does somewhat future-proof the design

The motor is bi-directional, via a crossover relay, with normally-
closed microswitches protecting the end stops, so stalling shouldn't
be an issue. Loss of circuit continuity is detected by the PIC and
it shuts off the power, which will be applied subsequently only if
the motor is meant to be going in the other direction

> Another option could be to use an intelligent MOSFET device with
> overload protection circuitry built in to limit the current

Thanks, I'll have a look at that. (see my other post re a thermistor)

Joe


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