Honeywell MS8104F1010 Actuator

Fast Acting Two Position Fire and Smoke Actuator, 24Vac, 30 Lb-In Torque, Spring Return, Reversible Mounting for Clockwise or Counter Clockwise Spring Rotation, 0-130 Degree Ambient Temperature Rating, 5-95% RH Humidity Rating, 1/2" Round Shaft Adapter Mounting