Allen-Bradley 1305-BA03A Variable Frequency Drive

The Allen-Bradley 1305-BA03A Variable Frequency Drive is a 1 HP (0.75 kW) three‑phase AC drive designed to deliver precise speed control for motors operating on 380–460 V AC. This Bulletin 1305 device belongs to the Series C family and provides a 0–400 Hz output frequency range, enabling fine motor speed adjustments for a variety of applications. It accepts 3‑phase input at 50/60 Hz and is specified for an input voltage of 380–460 V, with an input current around 2.2 A and an output current rating near 2.3 A, suitable for small to mid‑range motors. The enclosure is IP20, making it appropriate for indoor panel installations.

Typically used for general industrial motor control where reliable, adjustable speed is needed, the BA03A variant supports integration with common control schemes and can replace older starters or manual speed controls in environments such as conveyors, pumps, or fans that require precise speed modulation. This model is one of several 380–460 V AC configurations in the 1305 family, emphasizing compact, programmable speed control for 3‑phase induction motors while maintaining straightforward setup and operation.