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LPHA
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CTUATORS
Features
· Compact size, small dimensions
· 360° installation
· 100% water protection
· First-Open function
· Valve-Adaptor system
· Practical, functional design
· Adjustment Control
· Reliable and long-life,
· Maintenance-free
· Minimal power demand
· Surge protection
· Silent operation
· Optional: Adaptable, Protection
Cap
2975650: Alpha Basis 24v Actuator Module
3882802: Alpha 24V Actuator Aa4000
Alpha-Actuator 4 Pulse-Proportional
Outstandingly suitable for use in building process control
technique. The valves are activated by a pulse-proportional
process. The control voltage of the switching on and off
ration is changed at the same time. This type of control
offers great advantages, particularly in the case of valves
with strong logarithmic characteristic curves.
· Operational voltage 24 V AC
· Can be supplied as normally-closed
· Intelligent pulse-proportional setting path
· Self-calibrating
· Closing point recording
· For quick-acting heating and cooling system
· Connection line with connector approx. 1 m
· Good parallel response in the case that several heating or
cooling systems at the same time
· Otherwise like Alpha-Actuator 4 Standard
Alpha-Actuator 4 Standard
For two-point controls in heating, air conditioning
and ventilation plants. For the comfortable control
of radiators, heating circuit distributors, convectors
and similar devices.
· Operational voltage 24 V and 230 V
· Can be supplied as normally-open or normally-closed
· Connection line with connector approx. 1 m
Alpha-Actuator 4 Proportional
The 0 -10 V technology frequently used in construction
technology is used in a proportional 0 - 4 mm setting path
by this Actuator. An optimum control of quick-acting heat-
ing and cooling systems, such as cooling surfaces, heating
and cooling systems, fan coils with a proportion of external
air or ventilation cabinets, arises through this.
· Operational voltage 10 V AC
· Can be supplied as normally-closed
· Proportional valve travel
· Self-calibrating
· Closing point recording
· For quick-acting heating and cooling systems
· Connection line with connector approx. 1 m
· Otherwise as Alpha-Actuator 4 Standard
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Adapter Concept
There are a wide range of suitable adapter
colours to correspond with your valve or
manifold The adjustment will be synchronized
with the valves of the respective valve
manufacturer.
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TECHNICAL DATA
Type
AA 2004
Version
Closed when de-energized
Voltage
230 V AC, ±10%, 50/60 Hz
Max.
inrush current 250 mA during 2 min. max.
Operating current
75 mA
Operating power
1.8 W
Closing and opening times
Approx. 3 min.
Actuating force 100 N ± 5%
Operating temperature 0 - 50 °C
Fluid temperature 0 - 100 °C
Storage temperature -25 to +60°C
Ambient temperature
0 to +50 °C
Relative humidity
80% max. 1)
Degree / class of protection
IP 40 / II
CE conformity according to
EN 60730 / EN 60335
Housing / housing colour
Polyamide / white
Weight
73 g without adapter and cable
Connecting cable / cable length 2 x 0,75 mm² PVC, grey/1000 mm