Taken from old silo unloader to use as second parallel from alternate
location DC in shop...
240V coil relay, 240V 2hp-rated contacts of the mechanical spring
type--load contacts a common and one open/one closed pair. Relay
operates by momentary make/break--when cycled, the spring-loaded
contacts switch positions rather than by being held by continuous load.
Switch is manual pushbotton, START is NO, STOP is NC and one side of
each are common.
The wiring on the unloader was so decrepit I didn't try to trace it out
when salvaging pieces/parts but I'll be darned if I can figure out how
Dad had this wired to work (but I know it did, I was around for years
while still were using it and it was sitting there as was removed and
I can see how to get the START to work, what I haven't got my head
around is the STOP function since it breaks a contact instead of makes
one to cause the relay coil to momentarily energize/release to flip the
I'll see if I can manage an ASCII pictogram here...
X C X Contacts (C common)
\x x STOP
Anybody draw a schematic to start/stop a load across an X-C pair?
There's a jumper from L2 to C for starters for supply...