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General ambient conditions   

Operation

 

EN 60721-3-3

 

Transport 

 

EN 60721-3-2

 

Storage

 

EN 60721-3-2

 

 

Environmental conditions 

Class 3K3 

Class 2K3 

Class 2K3 

 

Temperature 

+1 ... +50 °C 

–25 ... +70 °C 

–5 ... +50 °C 

 Humidity 

5 ... 85 %rh 

< 95 %rh 

5 ... 95 %rh 

Connecting cable 

Cable 

SFP21/18 

AC 230 V 

SFP71/18 

AC 24 V 

 

Cable color 

Connection 

Cable color 

Connection 

Operating voltage 

Brown L  Red  G 

2-core

 

Blue N Black 

G0 

Auxil. switch ASC2.1/18 

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

10

6

79

,7

112

 

01688

58

 

Revision numbers 

Product number 

Valid from rev. no. 

Product number 

Valid from rev. no. 

SFP21/18 

SFP71/18 

 

6/6 

Siemens Building Technologies 

Elctromotoric Actuators 

CA1N4865en 

2009-2011 Siemens Switzerland Ltd.

Subject to change

HVAC Products 

 

20.04.2011 

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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