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Siemens Building Technologies 

Elctromotoric Actuators 

CA1N4865en 

HVAC Products 

 

20.04.2011 

Technical data 

 

 

SFP21/18 

SFP71/18 

Power supply 

Operating voltage 
 Voltage tolerance 

AC 230 V 

±

 15% 

AC 24 V 

±

 20% 

 Frequency 

50 

Hz 

 

Max. power consumption 

9.8 VA 

 

Fuse protection for incoming cable 

Max. 3 A (external) 

Control 

Control signal 

On/off via temperature controller  

Phase cut and pulse-width-modulated signals  

are not suitable.

 

 

Opening/closing operations 

Recommended number: approx. 10 000 / year 

(equivalent to approx. 50 per day) 

Operating data 

Position with de-energized actuator 
 2-port valve (VVP47..) 
 3-port valve (VXP47.. and VMP47..) 

 

 AB closed 

 AB closed, B 

 AB open 

 

Positioning time 

Opened by motor: 10 s 

Closed by spring: 30…50 s 

 

Nominal stroke 

2.5 mm 

 

Positioning force 

135 N 

 

Manual adjustment 

0...90 % 

 

Admissible temperature of  
medium in the connected valve: 

 

1...110 °C 

Electrical connection 

Connecting cable (integral) 

2-core, 1.8 mm 

18 AWG (0.96 mm

2

Norms and Standards 

CE–conformity 
to EMC directive 

 
2004/108/EC 

 Immunity EN 

61000-6-2 

Industrial 

3)

 

 Emissions EN 

61000-6-3 

Residential 

 

Low Voltage Directive 

2006/95/EC 

 

Electrical safety EN 60730-1 

 

Protection class to 

EN 60730, Section 2.7 Class II 

Class III 

 

Pollution degree 

to EN 60730, 2 

 Housing 

protection 

Upright to horizontal 

 
IP30 to EN 60529 

 

Environmental compatibility 

ISO 14001 (Environment) 
ISO 9001 (Quality) 
SN 36350 (Environmentally compatible products) 
RL 2002/95/EG (RoHS) 

Dimensions / Weight 

Dimensions 

See "

Dimensions

", page 6 

 Weight 

 without auxiliary switch 
 with auxiliary switch 

 

0.585 kg 
0.692 kg 

 

0.585 kg 
0.692 kg 

Materials Base-plate 

Housing 

Die-cast aluminum 

Polycarbonate 

Housing colors 

Base and cover 

Light gray, RAL7035 

Auxiliary switch (optional) 

Switch type 

Changeover contact 

 

Switching point 

at approx. 50 % stroke 

 

Switching capacity 

 

AC 250 V  3 A resistive 

 

 

2 A inductive 

 

Connecting cable 

3-core, 1.8 mm 

18 AWG (0.96 mm

2

 

Summary of Contents for SFP21/18

Page 1: ...P47 and VMP47 primarily in heating ventilation air conditioning and refrigeration systems for water based control of low temperature hot water and cooling water The SFP actuators together with the 3 port valves VXP47 are suitable for low leakage change over applications Functions The electric actuator requires an on off controller thermostat to control the valve If the temperature of the medium de...

Page 2: ...chronous motor a gear mechanism and a return spring The electric motor is overload resistant and anti locking so that continuous operation is possible The maximum stroke is limited mechanically The closing motion by contrast includes an overrun for the gear mechanism This protects the gear mechanism from mechanical shock and increases service life The valve is connected by an 1 8 m cable which is ...

Page 3: ...kaging Mount ring AL50 prior to mounting the actuator onto V P47 valves 85 85 Check the wiring Check the functioning of the actuator and of the auxiliary switch if fitted The valve can be opened manually by use of a lever on the actuator When the valve is approximately 90 open this locks into position When electrical operation is resumed the locking mechanism is released automatically Opening the ...

Page 4: ...ctronic components and must not be disposed of together with domestic waste This applies in particular to the PCB Legislation may demand special handling of certain components or it may be sensible from an ecological point of view Current local legislation must be observed Warranty The technical data given for these applications is valid only when the valves are used with the actuators described u...

Page 5: ...nected valve 1 110 C Electrical connection Connecting cable integral 2 core 1 8 mm 18 AWG 0 96 mm2 Norms and Standards CE conformity to EMC directive 2004 108 EC Immunity EN 61000 6 2 Industrial 3 Emissions EN 61000 6 3 Residential Low Voltage Directive 2006 95 EC Electrical safety EN 60730 1 Protection class to EN 60730 Section 2 7 Class II Class III Pollution degree to EN 60730 2 Housing protect...

Page 6: ...Black Red Input Black Red Input optional Black Blue N C contact Black Blue N C contact 3 core Black Pink N O contact Black Pink N O contact Dimensions All dimensions in mm 01466 80 79 7 112 01467 58 Actuators without auxiliary switch SFP21 18 SFP71 18 Actuators with auxiliary switches SFP21 18 SFP71 18 with ASC2 1 18 01687 106 79 7 112 01688 58 Revision numbers Product number Valid from rev no Pro...

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