What the drive covers on the motor shaft
The Delta VFD750C43A-21 is a C2000-series AC drive rated for a 75 kW motor in normal duty and 55 kW in heavy duty, equivalent to 100 hp and 75 hp respectively, so it spans the line between standard constant-torque loads (pumps, fans, conveyors) and the higher inrush that constant-torque machinery draws at start. It runs on a 400 V class supply — 323 to 528 VAC operating range — with 47 to 63 Hz input tolerance, so it rides through weak feeds and tolerates generator-fed panels without nuisance trips.
Current, capacity, and efficiency at the output
The drive delivers 150 A normal / 143 A heavy rated output current at 120 kVA normal / 114 kVA heavy, which sets the upstream breaker and cable sizing rather than the motor nameplate alone. Efficiency sits at 97.8 %, so above a few kW shaft output the cooling load on the cabinet is dominated by the drive's own losses, not the motor — a heat-exchanger or forced-air panel design should be planned against the 2.2 % loss budget for continuous duty. Input current is rated 157 A normal / 149 A heavy, which is the figure the panel builder uses to size the feeder breaker and the line reactor, since it includes the rectifier inrush component the motor-side figure does not.
Sourcing posture and lead-time expectation
Lifecycle is recorded as current, with no successor on the record; typical lead time runs 1 to 10 working days through the distribution channel, so a production BOM line can be closed against a confirmed quote without carrying a safety stock buffer on the drive itself.