Actuator, Valve Application Damper, Signal Type On/Off, Rated Torque 175 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 2, IP Rating IP54, Spring Return Spring Return, Smoke Application Rating Smoke Application Rated, Fire Application Rating Fire Application Rated, Time to Close 15 sec