Actuator Valve Application Damper and Valve Signal Type Proportional Rated Torque 177 in-lb Input Voltage 24V AC/DC Contact Form SPDT Electrical Connection Type Hardwired For Use With Building Automation Systems Building Automation System Compatible NEMA Rating 2 IP Rating IP54 Spring Return Spring Return Time to Close 150 sec Shaft Type Self-Centering Clamping Shaft Rotation CW/CCW Stroke Degree 90 Degrees Mounting Type Direct Mount Maximum Operating Temperature 131 Degrees F