2-channel digital input terminal thermistor  EL1382
Signal LED 1
Error LED 1
Signal LED 2
Error LED 2
Power contact
+24 V
Power contact 0 V
+Input 1
-Input 1
+Input 2
+24 V
0 V
-Input 2
Top view 
Contact assembly 
extended shock and vibration range

EL1382 | 2-channel digital input terminal thermistor

The digital EL1382 input terminal analyses the input signal of thermistor sensors with the aid of a current loop and a voltage < 5 V. The EL1382 is a monitoring device for the thermal machine protection of PTC sensors, suitable for the direct monitoring of motors, bearings and equipment. In the process image, the state of the sensor is indicated by one bit each. A further bit reports short-circuits or line interruptions. Red or green LEDs indicate the state of the two input bits.

Technical data EL1382 | ES1382
Connection technology 2-wire
Specification thermistor PTC
Number of inputs 2
Nominal voltage 24 V (-15 %/+20 %)
“0“ signal voltage ≤ 1.5 kΩ
“1“ signal voltage ≥ 3 kΩ
Signal “0“ release ≤ 1.5 kΩ
Signal “1“ excess temperature ≥ 3 kΩ
Sensor voltage ≤ 5 V
Diagnostics open-circuit monitoring > 12 kΩ, short-circuit diagnostic < 25 Ω
Input filter 30 ms
Distributed clocks
Current consumption E-bus typ. 120 mA
Electrical isolation 500 V (E-bus/field potential)
Bit width in the process image 4 inputs
Special features monitoring device for thermal machine protection
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