EN
001792.04 11/2018 EN/DE
14
Operating instructions float switch, model ELS
RC elements for reed contacts 40 ... 100 VA
Voltage
Resistance
Capacitance
Type of RC element
AC 24 V
47 Ω
0.33 μF
B 3/24
AC 48 V
100 Ω
0.33 μF
B 3/48
AC 115 V
470 Ω
0.33 μF
B 3/115
AC 230 V
1,000 Ω
0.33 μF
B 3/230
Connection with capacitive load
To increase the service life of the contacts, we recommend
operation with a contact protection relay.
Connection diagrams
Colour coding per IEC 757
Number of switch points
Connection housing
1 level switch point
(change-over contact)
GY 1
L1
BN 2
BK 3
R
S
= 220 Ω (for AC 230 V)
C₁ = internal capacitance
S1
R
S
+
–
C
1
AC 230 V
AC voltage current limitation
e.g. for electronic time relay
Relay
R
S
= 22 Ω (47 Ω for contacts ≤ 10 VA)
C₁ = internal capacitance
S1
R
S
+
–
C
1
DC 24 V
Current limitation, DC voltage
e.g. for PLC, PCS and cables > 50 m
PLC
5. Commissioning, operation
