The Powermite 599 MT Series SAS Electronic Valve Actuator requires a 24V supply and receives a floating control signal to provide three-position control of a valve. The spring return actuator works with Powermite 599 MT Series terminal unit valves with a 7/32 in. stroke.
The Siemens SAS81.33U floating spring return actuator
Replaces:
SQS85.53U