Hopefully this is the right forum, if not please advise me and I'll move it.
I'm helping someone to repair the brake circuit in a 50-year-old Schaublin 135 lathe. An annotated snippet of the circuit is below. The brake is effectively a solenoid with about a 25 ohm coil resistance.
The contactor (relay) in the middle is no longer working correctly, probably because some of the contacts got welded together from the current generated when the contactor opened. I'm guessing that the capacitor and MOV have aged enough that they didn't do their job properly.
I'd like to suggest that he replace this with an off-the-shelf solid state part. This needs to handle (say) 60VDC/10A for the load, and if needed a snubber diode or MOV can be added to handle the inductive switching spike. The hard part is that the control voltage should be 230VAC/50Hz, and we don't want it switching on and off every 20 msec.
So my question: can anyone point me to an off-the-shelf BJT or Mosfet solid state relay which can handle 60VDC/10A for an inductive load AND has a 230VAC control signal?
(I know that it's easy enough to generate a low-voltage filtered DC control signal from the high voltage AC control input, but for this type of industrial equipment it's best to stick to 100% off-the-shelf replacement parts, if at all possible.)
Thanks!
Bruce