5
Installation dimensions
Outdoor usage:
When using actuators in environments with high
temperature fluctuations or high humidity, we
recommend using a heating resistor.
Figure 2: installation position
The actuator may be mounted in any desired position except “cover facing downwards”.
6.
Manual operation
The hand wheel allows manual operation in case of power failure or during adjustments (Mounting or
positioning the valve). For manual operation, the hand wheel has to be pushed down against a spring.
Do not exceed the adjusted electrical stroke limits. by
handwheel.
The mechanical limits must be set accordingly.
Failure to observe this warning will change the electrical
feedback setting!
Figure 3: Manual operation
7.
Electric supply
Before connecting to mains, ensure that the mains supply is isolated and secured against an
accidental switching-on.
Mains connection cables must be dimensioned suitably to accept the maximum current requirement of the actuator
and correspond to IEC 227 and IEC 245.
The yellow-green coloured cables may be used only for connecting to earth.
When inserting cables through the cable connector, ensure that the maximum bending radius for the cable is
observed.
PSR-E-C electric actuators do not have an internal electrical power switch. A switch or power mains switch has to be
provided therefore in plant installation. This should be positioned close to the device and easily accessible to the
user; it shall be labelled as the mains isolator switch for the actuator.
Electric installation as well as over-current and overvoltage protection devices must be conform to the standard DIN
VDE 0100-410:2007-06, protective class I resp. protection class 3 (24VAC/24VDC) and also to the standard DIN IEC
60364-4-44 according to the applied overvoltage category of the actuator.
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