Long shot I know but as anyone on here wired a iVAC - Wireless Remote Control to a 5pin NVR switch or even a Axminster craft ac118ce cyclone dust extractor Mock
If you look in the manual it states there are two relays, one normally open with White & Red wires which go across your DOL start button, in parallel and one normaly closed relay that has Black & Green wires which is wired in series with the DOL STOP button contacts.
You may have problems trying to use it with an NVR switch, these are just a compact & cheap version of a proper industrial DOL starter.
Anyone know a quick and cheap way around me connecting my iVAC - Wireless Remote Control to a 5pin NVR switch or even a Axminster craft ac118ce cyclone dust extractor