Actuator, Valve Application Damper, Signal Type Proportional, Rated Torque 79.6 in-lb, Input Voltage 24V AC, Contact Form SPDT, Electrical Connection Type Plug-In, For Use With Building Automation Systems Building Automation System Compatible, NEMA Rating 2, IP Rating IP32, Spring Return Non-Spring Return, Time to Close 60 sec, Shaft Type Self-Centering Clamping, Shaft Rotation CW/CCW, Stroke Degree 90 Degrees , Mounting Type Direct Mount, Maximum Operating Temperature 131 Degrees F