Data Sheet for Product

SKD6xU Electronic Valve Actuators 24 Vac Proportional Control Technical Instructions
Document Number 155-180P25
September 25, 2018
Siemens Industry, Inc. Page 3
Accessories
NOTE: Installation instructions are included with each accessory.
Figure 1. Auxiliary Switch.
ASC1.6 Auxiliary switch.
Sends a signal to indicate the valve is in the
0% stroke position. Switching point is fixed
at the 0% stroke position.
Switching capacity 24 Vac
4A resistive
2A inductive
Lowest recommended
current 10 mA
Figure 2. Stem Heating Element.
ASZ6.6 The stem heating element
prevents the formation of ice on the stem
when the medium temperature drops below
32°F (0°C). It is suited for universal use with
valves having a stem or spindle diameter of
10 or 14 mm.
Operating voltage 24 Vac/dc ± 20%
Power consumption ≤ 40 VA/30W
Figure 3. Weather Shield.
599-10071 Weather Shield.
See Service Kits for replacement ultraviolet
resistant cable ties.
Service Kits
The only field serviceable part is the circuit board.
Circuit board replacement 4-668-5748-8
Plastic wiring compartment cover 4-104 5634-8
Manual Override Kit for SKD 4-268 5504-8
Ultraviolet (UV) resistant cable ties (pkg. of 10) 538-996
WARNING:
This product contains a spring under high compression. Do not attempt to
disassemble the actuator.