Electromechanical control unit
Counter gear mechanism for end positions OPEN and CLOSED
Turns per stroke: 2 to 500 (standard) or 2 to 5,000 (option)
Limit switches
Tandem switch (2 NC and 2 NO) for each end position, switches galvanically isolated
Standard:
Triple switches (3 NC and 3 NO) for each end position, switches galvanically isolated
Intermediate position switches (DUO limit switches), adjustable for each direction of oper-
ation
Options:
Torque switches adjustable for directions OPEN and CLOSE
Torque switches
Single switch (1 NC and 1 NO) for each direction, not galvanically isolated
Standard:
Tandem switch (2 NC and 2 NO) for each direction, not galvanically isolated
Option:
Silver (Ag)
Standard:
Switch contact material
Gold (Au), recommended for low voltage actuator controls
Option:
Potentiometer or 0/4 – 20 mA (electronic position transmitter)
Position feedback signal, analog
(options)
Continuous indication, adjustable indicator disc with symbols OPEN and CLOSED
Mechanical position indicator
Blinker transmitter (option for modulating actuators)
Running indication
Self-regulating PTC heater, 5 – 20 W, 110 – 250 V AC/DC
Standard:
Heater in switch compartment
24 – 48 V AC/DC (for actuators with 3-phase AC/1-phase AC/DC motors)
Or 380 – 400 V AC (for actuators with 3-phase AC motors)
Option:
A resistance type heater of 5 W, 24 V AC is installed in the actuator in combination with AMExC or
ACExC actuator controls.
Service conditions
Indoor and outdoor use permissible
Use
Any position
Mounting position
≤
6,500 ft [2,000 m] above sea level
> 6,500 ft [2,000 m] above sea level on request
Installation altitude
–40 °F to +140 °F (–40 °C to +60 °C)
Standard:
Ambient temperature
For exact version, refer to actuator name tag.
Up to 100 % relative humidity across the entire permissible temperature range
Humidity
4/6
Enclosure rating according to NEMA
250
Enclosure rating 6 according to AUMA specification.
For exact version, refer to actuator name tag.
Pollution degree 4 (when closed) according to EN 50178
Pollution degree
2 g, from 10 to 200 Hz
Resistant to vibration during start-up or for failures of the plant. However, a fatigue strength may not be
derived from this. Valid for multi-turn actuators in version AUMA NORM (with AUMA plug & socket
connector, without actuator controls). Not valid in combination with gearboxes.
Vibration resistance to IEC 60068-
2-6
KS: Suitable for use in areas with high salinity, almost permanent condensation, and high
pollution.
Standard:
Corrosion protection
KX: Suitable for use in areas with extremely high salinity, permanent condensation, and
high pollution.
Option:
KX-G: Same as KX, however aluminum-free version (outer parts)
Double layer powder coating
Coating
AUMA silver-gray (similar to RAL 7037)
Standard:
Color
Other colors available on request
Option:
AUMA multi-turn actuators meet or exceed the lifetime requirements of EN 15714-2. Detailed information
can be provided on request.
Lifetime
61
SAEx 25.1 – SAEx 35.1 / SAREx 25.1 – SAREx 30.1
NORM (without controls)
Technical data
