Electric Actuator, Non-Spring Return, Shaft Type Self-Centering Clamping, Torque (In. -Lbs. ) 18, Stroke Deg. 90, Height (In. ) 2, Width (In. ) 5, Depth (In. ) 2-3/4, Screw Terminals, Floating, 140, 2.1 VA, Timing (Sec. ) 30, Voltage 24 AC, 2.1, Dampers and Valves, Includes Anti Rotation Bracket