This is the Siemens Building Technologies (HVAC Products) manual, document CA1N4895cn dated 02.07.2004, for the SSC31, SSC81, SSC61 and SSC61.5 electric actuators. The actuators are used with VVP45..., VXP45... and VMP45... valves, and with VVG45..., VXG45... and X3i... valves when the ASK30 accessory is fitted. Three-position versions run on AC 230 V (SSC31) or AC 24 V (SSC81), and the modulating versions SSC61 and SSC61.5 use AC/DC 24 V with a DC 0...10 V control signal.
The document describes the operating principle (terminals Y1 and Y2 for open/close, 3-position control, DC 0...10 V positioning), the self-calibration procedure, mounting notes, connection diagrams for 3-position and modulating versions, and the technical data and dimensions of the actuators. Positioning force is given as 300 N with a 5.5 mm stroke, running times of 150 s (SSC31, SSC81) and 30 s (SSC61), and the actuators are described as maintenance-free. This manual is written in Chinese.
| Operating voltage SSC31 | AC 230 V ± 15 % |
|---|---|
| Operating voltage SSC81 | AC 24 V ± 20 % |
| Control signal SSC61 / SSC61.5 | DC 0...10 V |
| Degree of protection | IP40 to EN 60529 |
The actuators are intended for VVP45..., VXP45... and VMP45... valves, and for VVG45..., VXG45... and X3i... valves when the ASK30 accessory is used.
The SSC61 and SSC61.5 are modulating actuators with a DC 0...10 V control signal on AC/DC 24 V supply.
The three-position SSC31 (AC 230 V) and SSC81 (AC 24 V) have a running time of 150 s.