Campbell Hausfeld ST122003AJ Magnetic Motor Starter

Campbell Hausfeld ST122003AJ Magnetic Motor Starter is a 5 HP, 230V, three-phase control device designed to energize and de-energize a 3‑phase motor from a panel or control station. The ST122003AJ variant is identified in Campbell Hausfeld’s documentation as a 20A magnetic starter configured for 230V service, aligning with 3‑phase full‑voltage motor control. As a magnetic starter, it uses a contactor coil actuated by a control circuit to switch power to the motor, enabling remote operation from a panel or automatic control system. This model is designed for use with Campbell Hausfeld equipment and other 230V 3‑phase motors where a dedicated motor‑control device is needed to manage start/stop sequences in equipment such as air compressors, pumps, and conveyors. The 5 HP rating at 230V indicates the maximum motor size the starter is intended to handle in a 3‑phase configuration, consistent with common motor‑control practice for mid‑range loads. When wired into a compatible control circuit, the ST122003AJ provides a straightforward path to connect motor control logic for 230V 3‑phase systems.