Actuator, Valve Application Damper, Signal Type Proportional, Rated Torque 25 in-lb, Input Voltage 24V AC, Output Signal Not Applicable, Contact Form SPDT, Electrical Connection Type Hardwired, For Use With Building Automation Systems Building Automation System Compatible, NEMA Rating Not Applicable, IP Rating Not Applicable, Spring Return Spring Return, Time to Close 90 sec, Shaft Type Single-Ended, Shaft Rotation CW, Stroke Degree 90 Degrees , Mounting Type Foot Mount