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Siemens
Actuators SAX.., SAY.., SAV.., SAL.. for valves
CE1P4040en
Building Technologies
Engineering
2018-12-05
Cabl
e
len
gth
L
Power Consumption P
Permissible cable length
L
as a function of power
P
and cross-sectional area of wire as a parameter
P is the decisive power consumption of all actuators connected in parallel. When
operating on AC 24
V, power consumption is in VA; when operating on DC
24 V, in
W.
Operating voltage
Permissible voltage drop / wire
Formula for wire length
AC 230 V
2% of AC 230 V
L = 46
·
P
A
1313
·
[
m
]
AC/DC 24 V
4% of AC 24 V
L =
P
A
1313
·
[
m
]
1% of DC 10 V
L =
(DC)
I
A
5.47
·
[
m
]
A
Cross-sectional area of wire in mm
2
L
Permissible wire length in m
P
Power consumption in VA (AC) or W (DC) (see actuator’s rating plate)
I(DC) DC current part (in A) on G0 wire
2.10 Warranty
The engineering data specified in chapter "Equipment combinations" (page 14) are
only guaranteed in connection with the Siemens valves listed.
When using the actuators in connection with valves of other manufacture, correct
functioning must be ensured by the user, and Siemens will assume no
responsibility.
L/P-diagram for
AC/DC 24 V
Note
Formulas for wire
lengths
Note
