Reliance Electric SP500 1SU21001 is a 1 HP, 3‑phase AC variable frequency drive designed for 200–230 VAC input at 50/60 Hz, housed in a NEMA 1 enclosure. It accepts 3‑phase power and provides controlled frequency and voltage to a connected 3‑phase motor to enable speed and torque control. The model 1SU21001 specifies 1 HP rating with a 200/230 VAC, 50/60 Hz input and a 7.0 A input current, aligning with compact, indoor motor‑control applications. As part of the SP500 family, this drive is intended for use with standard three‑phase motors in environments where a basic, reliable speed‑control solution is required for equipment such as conveyors, pumps, fans, and machine tools.
