Equipment/ functions - Process Valve Solutions

Running indication (option)
As an option the actuators are available
with a blinker switch installed
which can be used for the running
indication. The contacts are available
at the electrical connection.
Heater
Rating
Technical data for heater in switch compartment
Heater for actuators
without integral controls
Type of current Switch rating Imax
30 V 125 V 250 V
AC 5 A 5 A 5 A
DC 2 A 0.5 A 0.4 A
Heater in switch compartment
(standard)
Condensation in the actuator is possible
due to wide fluctuation of the
ambient temperature. The heater
integrated in the control unit prevents
this in general.
The heater is rated for continuous
duty. Therefore it should always be
energized, but at the very least when
the actuator is not operating.
Heater for actuators with
integral controls
Heating element self-regulating PTC element Resistance type heater
Voltage ranges 110 V – 250 V DC/AC
24 V – 48 V DC/AC
380 V – 400 V AC
Output 5 W – 20 W 5 W
24 V DC/AC
(internal supply)
Equipment/ functions
Motor heater
(option)
For operation in extremely low temperatures
AUMA strongly recommends
the use of a motor heater.
This applies to actuators in extreme
low temperature version from
– 50 °C. The heater prevents actuator
starting problems caused by
extremely cold temperatures.
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