5 conductor cables exist, but we don’t sell any and haven’t tested any (so I can’t recommend anything in particular). If your motor cable includes a ground wire then likely the easiest approach would be connecting the grounds together, and then using our 4-conductor 24AWG Ping Cable with one of the 4.5mm WetLink Penetrator (WLP) options for the power wire and the three sensor wires.
If that’s not possible then you may need to use 6 wires for the sensor cable. We’re currently testing to confirm that the 6-conductor cable we use in our Ping360 works with the 4.5mm WLP, but it only has 28AWG wires.
We’re also testing several other WLP sizes, which I tentatively believe should be releasing within the next few months. There should be a couple of 6 conductor 24AWG or thicker cables you could use with them (there are some on our list to test), but I’m not sure whether that’s soon enough for your project deployment.
Alternatively you could try to find some 5-conductor cables and test if they’re suitable with the existing WLPs, but we haven’t yet set up a guide for how to determine that suitability.