Data Sheet for Product

2/8
Siemens Elctromotoric Actuators CA1N4865en
Building Technologies 2021-07-16
Type summary
Prod. no.
Operating voltage
Positioning time
Control signal
Connecting cable
SFP21/18
AC 230 V
10 s 2-position 1.8 m
SFP71/18
AC 24 V
Type
Description
Switching point
Switching capacity
Connecting cable
ASC2.1/18
Auxiliary switch at approx. 50 % stroke AC 250 V / 3(2) A 1.8 m
Ordering
Actuators, valves and accessories are supplied separately.
The AL50 supporting ring (necessary for combination with V..P47..) is included in the
delivery.
See overview page 8.
Equipment combinations
Type code
Valve type
k
vs
PN class
Data sheet
[m
3
/h]
VVP47.. 2-port valves
0.25...4.0
PN16 4847
VXP47..
3-port valves
0.25...4.0
VMP47..
3-port valves with T-bypass
0.25...2.5
Technical design / Mechanical design
The valve is opened electrically by the actuator and closed by spring force.
It incorporates a synchronous 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 an integral part of the actuator.
Accessories
Example:
Product number Stock number Designation Quantity
SFP71/18
SFP71/18
Electromotoric Actuators
2
ASC2.1/18
ASC2.1/18
Auxiliary Switch
1
Delivery
Rev. no.