Data Sheet for Product

Technical Instructions SKD6xU Electronic Valve Actuators 24 Vac Proportional Control
Document Number 155-180P25
September 25, 2018
Page 2 Siemens Industry, Inc.
Specifications
Power supply
Operating voltage 24 Vac -20%/+30%
Frequency 50/60 Hz
Power consumption 17 VA/12W
Control signals
Control input (Y)
Voltage 0 to 10 Vdc or 4 to 20 mA
(DIP switch selectable)
Maximum Impedance 0 to 10 Vdc 100K ohms
4 to 20 mA; 240 ohm
Signal resolution <1%
Hysteresis 1%
Control input (Z)
Resistance 0 to 1000 ohms
Voltage 0 to 1.6V
Control output (U) – position feedback
Voltage 0 to 9.8 Vdc + 2%
Load Impedance >10K ohm
Current 4 to 19.6 mA + 2%
Load impedance < 500 ohms
Function
Nominal stroke 3/4-inch (20 mm)
Run time with control operation (full stroke)
Pushing stroke, 0 to 100% 30 seconds
Pulling and Spring return stroke, 100 to 0% 15 seconds
Nominal Force Stroke Force
NC and 3-way upper 0% 225 lbs (1000 N)
NO and 3-way by-pass 100% 258 lbs (1150 N)
Agency Certification
UL approval UL873
cUL Certified to Canadian standard
C22.2 No. 24-93
conformity per the EMC directive 89/336/EEC
Low voltage directive 73/23/EEC
Ambient conditions
Ambient temperature (Operation) 5°F to 122°F (-15°C to 50°C)
Media temperature -13°F to 300°F (-25°C to 150°C)
<32°F (0°C) requires a Stem Heater
Housing
NEMA Rating NEMA 1 (interior only)
See Accessories.
Miscellaneous
Dimensions See Figure 17
Conduit opening 1/2-inch NPSM
Weight
SKD60U 7.9 lbs (3.6 kg)
SKD62U 8.5 lbs (3.85 kg)