2-channel digital input terminal 120…230 V AC EL1722
Signal LED 2
Signal LED 1 
Input 1
Input 2
Top view 
Contact assembly 

EL1722 | 2-channel digital input terminal 120…230 V AC

The EL1722 digital input terminal acquires the binary control signals from the process level and transmits them, in an electrically isolated form, to the higher-level automation unit. It is possible to connect 120 V/230 V AC sensors directly. The EtherCAT Terminal contains two channels that indicate their signal state by means of light emitting diodes. The EL1722 does not have any power contacts. This makes it possible to create individual potential groups. The voltage between input 1 and input 2 must not exceed 230 V AC.

Technical data EL1722 | ES1722
Connection technology 2-wire
Number of inputs 2
Nominal voltage 120/230 V AC
“0” signal voltage 0…40 V
“1” signal voltage 79…260 V
Input current > 3 mA, typ. 6 mA
Input filter typ. 10 ms
Distributed clocks
Switching times 10 ms
Current consumption power contacts
Current consumption E-bus typ. 110 mA
Electrical isolation 500 V (E-bus/mains voltage); 3750 V AC, 1 min.
Configuration no address or configuration setting
Special features no power contacts
Weight approx. 60 g
Operating/storage temperature 0…+55 °C/-25…+85 °C
Relative humidity 95 %, no condensation
Vibration/shock resistance conforms to EN 60068-2-6/EN 60068-2-27
EMC immunity/emission conforms to EN 61000-6-2/EN 61000-6-4
Protect. class/installation pos. IP 20/variable
Pluggable wiring for all ESxxxx terminals
Product announcement
estimated market release on request