Siemens GLB131.2E DAMPER ACTUATOR | NON-SPRING RETURN | 24 VAC | FLOATING | 88 LB-INSiemens GLB131. 2E Damper Actuator Non Spring Return 24 VAC Floating 88 lb inOpenAir GLB Series Electric Damper Actuator, linear, non spring return, 250 Nm, 24 Vac, floating control, 150 sec run time Additional Information Actuation StyleLinear Force250 N Positioning signal3 position Positioning time150 s Position feedbackNone Power consumption2 VA, 1 W Ambient temperature, operation 3255 C Ambient humidity, operation95 % r. h. Operating voltage24 VAC