2016 Oventrop
1
“Aktor T ST”
Electrothermal actuator (0-10 V)
Das Qualitätsmanagementsystem von
Oventrop ist gemäß DIN-EN-ISO 9001
zertifiziert.
Tender specification:
Oventrop electrothermal actuator for steady control. Proportional
actuator (0-10 V) with connection thread M 30 x 1,5, closed with
current “off”, with “First-Open” function, stroke index and
automatic recognition of neutral point and valve travel. The
actuator can be installed in any position. Easy plug-in connection
with valve adapter.
Model:
Item no.:
“Aktor T ST”
24 V, proportional actuator (0-10 V)
1012953
closed with current “off”
Performance data:
Operating current:
24 V AC, –10% up to +20%, 50/60 Hz
Start up load:
< 320 mA for a max. of 2 min.
Continuous current:
about 42 mA
Control voltage:
0-10 V DC
Input impedance:
100 k
W
Travel:
5.0 mm
Piston stroke:
automatic recognition
Operating power:
> 90 N
Medium floating time:
30 s/mm
Protection:
IP 54 in any position
Protective system:
III according to EN 60730
Fluid temperature:
0 °C up to 100 °C
Ambient temperature:
0 °C up to 60 °C
Storage temperature:
-25 °C up to +60 °C
Connecting cable:
3 x 0.22 mm², length 1 m,
plug-in connection
Installation and fitting:
Electrical connection must be carried out in accordance with the
requirements of the local Electricity Board.
The connecting cable must not come into contact with the hot
pipe as excessive heat will accelerate the ageing of the cable
insulation.
When choosing the switching contacts and the network fuses, the
start up of the heating element has to be taken into consideration.
The following cable lengths are recommended for a 24 V
installation:
When installing several actuators, the indicated length of cable
must be divided by the number of mounted actuators.
A safety transformer according to EN 61558-2-6 must always be
used. Dimensioning of the transformer is determined by the start
up power of the actuators.
Rule-of-thumb: P
Transformer
= 6 W x n
n = Number of actuators
Cable cross-
section [mm
2
]
24V
max. length [m]
2 x 0.22
2 x 0.80
2 x 1.50
20
45
136
“Aktor T ST”
Technical information
Dimensions
Wiring diagram
Actuator
Adapter
M 30 x 1.5
61.5
44.3
7
5
1
.1
5
3
Stroke index
b
la
c
k
b
lu
e
re
d
0-10V DC
control signal
L1
L2
24V AC
