WIKA RLS-7000 Mode D'emploi page 14

5. Commissioning, operation
Connection with inductive load
With inductive loads, the float switches should be protected by
connection to an RC element or a free-wheeling diode.
EN
AC voltage
S1
AC 24 ... 230 V
Protective RC elements
Depending on the operating voltage, use RC elements exclusively in
accordance with the table below. RC elements other than those specified
here will lead to the destruction of the reed switch.
RC elements for reed contacts 10 VA
Voltage
AC 24 V
AC 48 V
AC 115 V
AC 230 V
Connection with capacitive load
AC voltage current limitation
e.g. for electronic time relay
S1
+
AC 230 V
–
14
RC
R
element,
see table
C
Resistance
100 Ω
220 Ω
470 Ω
1,500 Ω
R
S
C
WIKA operating instructions models RLS-7000, RLS-8000
DC voltage
+
DC 24 ... 230 V
–
Capacitance
0.33 μF
0.33 μF
0.33 μF
0.33 μF
R = 220 Ω (for AC 230 V)
S
C₁ = internal capacitance
1
Relay
S1
Type of RC element
A 3/24
A 3/48
A 3/115
A 3/230
Free-
wheeling
diode, e.g.
1N4007