Data Sheet for Product

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Siemens Electrothermal actuators STA..3.., STP..3.. CE1N4884en
Smart Infrastructure 2020-04-16
Switch power:
Switch-point: Between 1.5 and 2.3 mm stroke
The same as AS..23U but for AC/DC 24 V only. The green LED is lit synchronously
with the open/close control. It visually indicates control and provides support during
commissioning and service. Length 2 m.
Adapters are available for mounting the STA.. and STP.. actuators on valves from
other manufacturers (see "Accessories/Adapters" on page 5).
Tamper-proof fittings can be used to prevent unauthorized intervention on the
actuators.
AC
DC
3 A resistive 4…30 V / 100 mA
2 A inductive
48 V / 1 A
4
8
8
4
Z
0
4
BK
GY
G/+
G0/-
AC/DC 24 V
L
N
AC 230 V
L1
L2
Ø
4
8
8
4
Z
0
5
G/+ brown
G0/- blue
BK black
GY gray
L1 ca. 50 mm
L2 ca. 6 mm
Cross section 0.5 mm
2
ASY23L20LD
with LED indicator
G/+
G0/-
AC/DC 24 V
4
8
8
4
Z
2
9
L1
L2
Ø
4
8
8
4
Z
2
8
G/+ brown
G0/- blue
1 LED
L1 ca. 50 mm
L2 ca. 6 mm
Cross section 0.5 mm
2
Adapter AV.. for third-
party valves
Tamper-proof fitting
AL431
4884Z08