ABB Measurement & Analytics Contrac Electrical Linear Actuator RSD20

The RSD20 is an electrical linear actuator rated for 20 kN (4500 lbf) thrust, designed for continuous positioning or step control. It uses a three-phase asynchronous motor and internal rotary-linear conversion via a recirculating ball screw, with an integrated handwheel for manual operation. The actuator is stall-proof under S9 continuous duty per IEC 60034-1 and operates at adjustable speeds up to 7.5 mm/s. It includes integrated position and temperature sensors, and requires a separate field-mounted electronic unit for power and signal input. Supported communication includes analog 4-20 mA, PROFIBUS DP®, and HART®. The unit has an IP66 rating and operates in ambient temperatures of -10 to 65 °C, -30 to 50 °C, or -1 to 85 °C. Weight for a 300 mm stroke is 85 kg (187 lb).