I've been using XLRs for motor connections and have no problems with them. You can also get Ethernet connectors in an XLR shell which makes the connection a bit more workshop-suitable than a standard Ethernet connection (the XLR has one of these inside but provides mechanical stability). I always use heat-shrink sleeving on individual wires on these connections, including the GX16 signal connections. Makes wiring a bit more fiddly but worth it for reducing the risk of broken connections and shorting stands.