Delta Electronics VFD015B21A Variable Frequency Drive

The Delta Electronics VFD015B21A is a 1.5 kW (2 HP) panel‑mounted variable frequency drive in Delta's VFD‑B Series, engineered for general‑purpose motor speed and torque control in industrial and commercial systems. It accepts 200–240 VAC input with either single‑phase or three‑phase supply and delivers an output frequency range of 0.1–400 Hz with an approximate output current of 7 A. Control methods include V/Hz, sensorless vector, and closed‑loop vector, with built‑in functions such as PID control, torque boost, and slip compensation to optimize performance under varying loads. For communication and integration, it offers RS‑485 (Modbus) connectivity, and its fan‑cooled design comes in an IP20/NEMA 1 enclosure suitable for panel mounting in environments like pumps, fans, conveyors, compressors, HVAC systems, water and wastewater treatment, material handling, and ventilation.