USD 962.69
AC 24 V electro-hydraulic actuator, 1000 N, 20 mm stroke, DC 0…10 V / 4…20 mA / 0…1000 Ω, IP54, Modbus RTU option.
AC 24 V electro-hydraulic actuator, 1000 N, 20 mm stroke, DC 0...10 V / 4...20 mA / 0...1000 Ω, IP54, Modbus RTU option.
| Parameter | Value |
|---|---|
| Operating voltage | AC 24 V ± 20 % (SELV/PELV) |
| Frequency | 50 / 60 Hz |
| Positioning signal | DC 0...10 V / DC 4...20 mA / 0...1000 Ω |
| Positioning force | 1000 N |
| Nominal stroke | 20 mm |
| Positioning time at 50 Hz | Opening 30 s; Closing 15 s |
| Spring-return time | 15 s |
| Maximum permissible medium temperature | -25...150 °C |
| Input impedance (DC 0...10 V) | 100 kΩ |
| Input impedance (DC 4...20 mA) | 240 Ω |
| Signal resolution | < 1 % |
| Hysteresis | 1 % |
| Override control resistor range | 0...1000 Ω |
| Position feedback load impedance (DC 0...9.8 V) | > 10 kΩ |
| Position feedback load impedance (DC 4...19.6 mA) | < 500 Ω |
| Control signal selection | Direct-acting / reverse-acting |
| Stroke limit control range | 0...45 % adjustable / 100...55 % adjustable |
| Sequence control start point | 0...15 V adjustable |
| Sequence control operating range | 3...15 V adjustable |
| Modbus communication protocol | Modbus RTU RS-485, not galvanically isolated |
| Number of nodes | Max. 32 |
| Address range | 1...245 / 255 |
| Transmission formats | 1-8-E-1 / 1-8-O-1 / 1-8-N-1 / 1-8-N-2 |
| Baud rate | Auto / 9.6 / 19.2 / 38.4 / 57.6 / 76.8 / 115.2 kBaud |
| Bus termination | 120 Ω electronically switchable |
| Wire cross-sectional area | 0.5...2.5 mm² / AWG 21...14 |
| Cable inlet | 4 x M20 (∅ 20.5 mm) |
| SKD..U conduit knockout | For standard ½" conduit connectors (∅ 21.5 mm) |
| Fixed connection cable length (SKD62/MO) | 0.9 m |
| Number of wires (SKD62/MO) | 5 x 0.75 mm² |
| Protection class | As per EN 60730 |
| Pollution degree | 2 |
| Housing protection | IP54 as per EN 60529 |
| Operating climate | IEC 60721-3-3, Class 3K5 |
| Operating temperature | -15...50 °C |
| Operating humidity | 5...95 % r.h. non-condensing |
| Transportation climate | IEC 60721-3-2, Class 2K3 |
| Transportation temperature | -30...65 °C |
| Storage climate | IEC 60721-3-1, Class 1K3 |
| Storage temperature | -15...50 °C |
| Housing material | Die-cast aluminium |
| Bracket material | Plastic |
| Housing box material | Plastic |
| Hand crank material | Plastic |
| Weight | 3.60 kg (SKD60) |
| Height | 300 mm from plate without ASK50; 357 mm with ASK50 |
| Width | 127 mm |
| Depth | 105 mm |
| Footprint width | 120 mm |
| Lower body width | 66 mm |
| Connection clearance | > 100 mm from ceiling or wall; > 200 mm for connection/maintenance |
| Physical Weight (kg) | 3.6 |
| Dimensions L x W x H (cm) | 17.5 x 20.5 x 33.5 |
Ideal for modulating chilled water, heating water, or air-handling coil valves where precise 20 mm valve travel and 1000 N thrust are required.
Provides stable proportional control of valve position under varying differential pressure and load conditions.
Used with frost protection thermostats or QAF21/QAF61 monitors to drive the valve toward a protective position when freeze risk is detected.
Prevents coil freeze damage by forcing a coordinated protective stroke response.
SKD62/MO fits distributed building automation systems that require RS-485 Modbus RTU integration for remote command and status feedback.
Reduces analog I/O wiring and enables supervisory control, status polling, and networked commissioning.
