Well, I got replacement connectors from Digikey and repaired my existing cables. I did have to replace the connector shells, as the scorched pins had fused themselves with the plastic and could not be removed. I added solder to all the crimped connections for the heater power while I was at it. With the repaired cable I can feel a slight warmth near the connector when the heater is powered.
I also bought some of the connectors that piercet mentioned and built a new cable and harness using that. I printed an adapter for the panel mount connector, and I reused the threaded, brass inserts from the old, burned out connector. With the new cable I don’t notice (by hand) any warming of the connector when the heater is powered.
Here are a few pictures.
Edit: I’ve added the FreeCAD and STL files for the adapter plate.
TAZ5_Heated_Bed_Cable_Adapter_Plate.stl (43.4 KB)
TAZ5_Heated_Bed_Cable_Adapter_Plate.fcstd (13.2 KB)
