4-channel digital input terminal 12 V DC EL1144
Signal LED 4
Signal LED 2
Signal LED 3 
Signal LED 1 
Power contact
+12 V
Power contact 0 V
Input 1
Input 3
Input 2
+12 V
0 V
Input 4
Top view 
Contact assembly 
extended shock and vibration range 25g

EL1144 | 4-channel digital input terminal 12 V DC

The EL1144 digital input terminal acquires the binary control signals and transmits them, in an electrically isolated form, to the higher-level automation unit. The EtherCAT Terminal contains four channels that indicate their signal state by means of light emitting diodes.

Technical data EL1144 | ES1144
Connection technology 2-/3-wire
Number of inputs 4
Nominal voltage 12 V DC
“0” signal voltage < 2.4 V
“1” signal voltage > 8.5 V
Input current typ. 3.0 mA
Input filter typ. 10 µs
Distributed clocks
Current consumption power contacts typ. 14 mA + load
Current consumption E-bus typ. 90 mA
Electrical isolation 500 V (E-bus/field potential)
Configuration no address or configuration setting
Weight approx. 55 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
Approvals CE, UL, Ex