The MP4000 Actuator is primarily designed to regulate valves in response to the demand of a controller in HVAC systems. MP4 can be controlled by electronic controllers with modulating or 3-point control output. Manual operation mechanical and/or electrical, Automatic adaptation of stroke to valve’s end positions that reduces commissioning time (self-stroking). Characteristic optimization, Adjustable stroke limitation, Anti-oscillation function, External reset button. Power supply: 24 Vac/Vdc (+10, -15%). Close off force: 4000 N Grade of enclosure IP 54, Type 2. Max. stroke 8 mm. LVD 26/95/EC, EMC 24/18/EEC.