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CA1N4895en 
08.03.2004 

Siemens Building Technologies

HVAC Products

 

 

4

895

 

 

 

 

 

 

 

 

 

 

Electrical Actuators 

for valves VVP45..., VXP45..., VMP45... 

 SSC31 
 SSC81 
 SSC61...

 

 

• 

SSC31 

operating voltage AC 230 V 

3-position control signal 

• 

SSC81 

operating voltage AC 24 V 

3-position control signal 

• 

SSC61 

operating voltage AC/DC 24 V 

DC 0…10 V control signal 

• 

SSC61.5 

same as SSC61, plus electrical fail-safe function 

• 

Nominal force 300 N 

• 

Automatic identification of valve stroke 

• 

Direct mounting with coupling nut, no tools required 

• 

Cable connection via screw terminals 

• 

Manual override, indication of position and direction of travel 

• 

Parallel connection of multiple actuators  

• 

Special UL-listed versions  

Use 

For operation of Siemens valves of the VVP45..., VXP45... and VMP45... range 

for 

water-side control of hot water and cooling water in heating, ventilation and air 
conditioning systems

In conjunction with the ASK30 mounting kit, the former Landis & Gyr valves VVG45..., 
VXG45... and X3i... can also be operated. 

Summary of Contents for SSC31

Page 1: ...n Nominal force 300 N Automatic identification of valve stroke Direct mounting with coupling nut no tools required Cable connection via screw terminals Manual override indication of position and direction of travel Parallel connection of multiple actuators Special UL listed versions Use For operation of Siemens valves of the VVP45 VXP45 and VMP45 range for water side control of hot water and cooli...

Page 2: ...ombinations Type reference Type of valve kvs m 3 h PN class Data Sheet VVP45 2 port valves 0 25 25 PN16 N4845 VXP45 3 port valves VMP45 3 port valves with T bypass 0 25 4 VVG45 1 2 port valves 0 63 25 VXG45 1 3 port valves X3i 1 3 port valves 0 7 14 Retrofitting to former L G valves 1 With ASK30 mounting kit Function mechanical design When the actuator is driven by a 3 position or DC 0 10 V contro...

Page 3: ...ves the valve to the mechanical end stops and stores the associated positions permanently in the form of electronic values The positioning signal is only active on completion of this calibration process Calibration takes about 60 seconds The SSC61 5 only performs auto calibration when the charging process of 180 seconds is completed If the calibrated actuator is used with some other valve e g a re...

Page 4: ... of the SSC always check to ensure that the actuator concerned is mounted on a valve refer to Equipment combinations Calibrating the SSC61 or SSC61 5 without a valve connected causes the actuator to lock in position 1 To recalibrate after mounting on a valve disconnect power and reset the stroke manually from position 1 to 0 refer to Recalibration The rotary knob can be used to drive the actuator ...

Page 5: ... Products Technical data SSC31 SSC81 SSC61 SSC61 5 AC 24 V or DC 24 V Power supply Rated voltage Voltage tolerance AC 230 V 15 AC 24 V 20 20 25 Rated frequency 50 60 Hz Max power consumption 6 VA 0 8 VA 2 VA 2 VA 1 Fuse for incoming cable fast 2 A Control Control signal 3 position DC 0 10 V Input impedance for DC 0 10 V 100 kOhm Positioning accuracy for DC 0 10 V 2 of nominal stroke Parallel opera...

Page 6: ...utput is sufficient General ambient conditions Operation IEC 721 3 3 Transport IEC 721 3 2 Storage IEC 721 3 1 Environmental conditions class 3K3 class 2K3 class 1K3 Temperature 5 50 C 25 70 C 25 70 C Humidity 5 95 r h 95 r h 5 95 r h Connection terminals All actuators must be electrically connected and installed in accordance with local safety regulations Y2 Y1 N 4895Z06 Control signal CLOSE AC 2...

Page 7: ...l 4864A01 L N L N AC 230 V N Y2 Y1 2AF N Y1 Y2 Q1 Q2 Y Q1 Q2 Controller contacts N Controller Y Actuator SP System potential AC 24 V SN System neutral 4864A02 Y1 G G0 SP SN AC 24 V G Y2 Y1 Y2 N Q1 Q2 2AF Y Q1 Q2 Controller contacts N Controller Y Actuator SP System potential AC 24 V 4864A03 Y N Y G0 G Y G0 SP SN AC 24 V DC 24 V G 2AF SN System neutral SSC31 SSC81 SSC61 SSC61 5 ...

Page 8: ...ns Building Technologies Electrical Actuators CA1N4895en HVAC Products 08 03 2004 Dimensions All dimensions in mm 48 110 8 89 2 21 6 115 1 132 5 4895Z08 G 2004 Siemens Building Technologies AG Subject to change ...

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