RHD1250 / RHD2500 Contrac Electrical Rotary Actuator Data Sheet

This data sheet describes ABB's RHD1250 and RHD2500 Contrac electrical rotary actuators, which provide rated torques of 1250 Nm and 2500 Nm for continuous positioning of final control elements like valve flaps and ball valves. The document covers operating principles, including stall-proof S9 continuous modulation, maintenance-free operation up to 10 years, and control via a microprocessor-based electronic unit.