Actuator, Valve Application Damper, Signal Type Proportional, Rated Torque 25 in-lb, Input Voltage 24V AC, Electrical Connection Type Hardwired, Spring Return Spring Return, Time to Close 90 sec, Shaft Type Single-Ended, Shaft Rotation CCW, Stroke Degree 90 Degrees , Mounting Type Foot Mount, Maximum Operating Temperature 125 Degrees F, Minimum Operating Temperature -25 Degrees F, Overall Width 5 in, Application Dampers, Economizers, Number of Auxiliary Switches 0