Product Overview

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Siem ens Electrohydraulic actuators for valves CM1N4561en
Building Technologies 2014-06-18
Warranty
The technical data relating to specific applications are valid only in conjunction with the
valves listed in this Data Sheet under «Equipment combinations», page 3.
The use of the actuators in conjunction with third-party valves invalidates all
claims under Siemens Switzerland Ltd warranty.
Technical data
SKD32.. SKD82.. SKD6..
Power supply Operating voltage
Voltage tolerance
AC 230 V
± 15 %
AC 24 V
± 20 %
AC 24 V
–20 % / +30 %
SELV / PELV
Frequency 50 or 60 Hz
Max. Power consumption At
50 Hz
SKD32.21:
16 VA / 12 W
SKD32.50:
11 VA / 8 W
SKD32.51:
17 VA, 12 W
SKD82.50, ..50U
9 VA / 7 W
SKD82.51, ..51U
14 VA / 10 W
SKD60..
10 VA / 8 W
SKD62..
14 VA / 10 W
External supply cable fuse min. 0.5 A, slow
max. 6 A, slow
min. 1 A, slow
max. 10 A, slow
Signal inputs Control signal
3-position
DC 0...10 V,
DC 4...20 mA
or
0...1000 Ω
Terminal Y Voltage DC 0…10 V
Input impedance 100 kΩ
Current DC 4…20 mA
Input impedance 240 Ω
Signal resolution < 1%
Hysteresis 1 %
Terminal Z Resistor 1000 Ω
Override control Z not connected No function, priority
terminal Y
Z connected directly to G max. stroke 100 %
Z connected directly to G0 min. stroke 0 %
Z connected to M via 0...1000 W stroke proportional to R
Position
feedback
Terminal U voltage DC 0...9,8 V ±2 %
load impedance > 10 kΩ
current DC 4...19,6 mA ±2 %
load impedance < 500 Ω
Operating data Positioning time at 50 Hz
opening SKD32.21 30 s
SKD32.5.. 120 s SKD82.5.. 120 s
30 s
Closing SKD32.21 10 s
SKD32.5.. 120 s SKD82.5.. 120 s
15 s
Spring-return time (closing) SKD32.21 8 s
SKD32.51 8 s SKD82.51 8 s SKD62.. 15 s
Positioning force 1000 N
Nominal stroke 20 mm
Max. permissible medium
temperature
-25…150 °C
< 0 °C: requires stem heater ASZ6.5 or ASZ6.6
Electrical
connections
Cable entry
..U
4 x M20 (Æ 20.5 mm)
With knockouts for standard ½" conduit connectors (Æ 21.5 mm)