Mechanical Supplies
Electro-thermal Actuators: 2-Point & Proportional Control
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- Oventrop electro-thermal actuators with an M 30 x 1.5 connection thread, driving the stem with an electrically heated expansion element, no motor, no gears, silent in operation. 24 V AC/DC and 230 V versions, normally closed (2- and 4-wire) and normally open (2-wire): 250 mA start-up for up to 2 minutes then 75 mA running, 4.5 mm piston stroke, over 90 N closing force, about 3 minutes to open or close.
Application
The standard actuator on fan coil, underfloor heating manifold and radiator valve bodies in residential and hotel work, where silence in the occupied space decides the selection. The "first-open" function ships the normally closed models open with the current off, so the heating system can run during construction before the control wiring exists
it releases automatically once the actuator has been powered for more than six minutes.
Standards & Reference 5 cited
EN 60730-1
General requirements for automatic electrical controls: the base standard for thermostats, actuators and similar controls.
EN 60730-2-14
The part of the automatic controls standard covering electric actuators: the motorised heads on valves and dampers.
EN 60529
The IP code. Two digits stating how well an enclosure keeps out solid objects and water, IP65 and the like. The number a specifier reads first when equipment sits outdoors or in a plant room.
EN 61000-6-3
Electromagnetic emission limits for equipment in residential and light commercial environments.
Also citedEN 61000-6-1
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