- lower voltage windings so it would have more torque at high revs.
- a shaft encoder built in. I could add it later but this was WAY easier.
- auxiliary forced air cooling - not just a fan running off the motor shaft.
- a built in thermal sensor so the VFD can adjust to the motor temperature.
- class H winding insulation so it can safely run a bit hotter.
They emailed me last night saying it was ready to ship. I might have it in 2 to 3 weeks. (Shipping it is getting complex.)