Data Sheet for Product

3/8
Siemens Elctromotoric Actuators CA1N4865en
Building Technologies 2021-07-16
Accessories
The supporting ring AL50
1)
must be mounted onto the V..P47..
valve before the SFP actuator can be mounted.
The AL50 improves the stability between the actuator and the
valve.
1)
Included in the delivery.
The optional auxiliary switch can be fitted to the actuator
with two screws.
It switches at a stroke of approx. 50 %.
• Valve actuator de-energized:
→ Auxiliary switch open
• Voltage applied to valve actuator:
→ Auxiliary switch closed (50 ... 100 % stroke)
• Manual adjuster locked into position
(approx. 90 % stroke):
→ Auxiliary switch closed
01468
See "Technical data" for further information on the auxiliary switch, page 6.
Notes
The admissible temperatures (see "Technical data", page 6) must be observed.
• The actuator may be operated only with alternating current (AC 230 V for SFP21/18
and AC 24V for SFP71/18).
• Phase cut and pulse-width-modulated signals are not suitable.
• Recommended number of opening/closing operations: approx. 50 per day, with
200 heating or cooling days.
Mount ring
AL50
ASC2.1/18
auxiliary switch
Engineering
Electrical connection
Caution