Fire and Smoke Actuator Valve Application Damper Signal Type Proportional Rated Torque 180 in-lb Input Voltage 24V AC/DC 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 75 sec