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Quick Overview

Manufactured By: BECKHOFF
Manufacturer Part Number: EL 1904
IMS Product Code: 1807342
Packaging: Sold Individually


Beckhoff EL 1904 Digital Input Terminal


  • Connection technology: 1-/2-wire
  • Safety standard: DIN EN ISO 13849-1:2008 (Cat 4, PL e) and IEC 61508:2010 (SIL 3)
  • Number of inputs: 4
  • Protocol: TwinSAFE/Safety over EtherCAT
  • Status display: 8 LEDs: 1 per input, 4 diagnostic
  • Response time: typ. 4 ms (read input/write to E-bus)
  • Current consumption E-bus: Approx. 200 mA
  • Fault response time: ≤ watchdog time (parameterisable)
  • Bit width in the process image: input: 6 byte; output: 6 byte
  • Supply voltage: 24 V DC (-15 %/+20 %)
  • Nominal voltage: 24 V DC (-15 %/+20 %)
  • Special features: 4 safe inputs
  • Operating/storage temperature: -25…+55 °C/-40…+70 °C
  • Permitted degree of contamination: 2
  • Climate class EN 60721-3-3: 3K3
  • EMC immunity/emission: Conforms to EN 61000-6-2/EN 61000-6-4
  • Vibration/shock resistance: Conforms to EN 60068-2-6/EN 60068-2-27
  • Installation position: horizontal
  • Protection class: IP 20

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Product images shown are for illustration purposes only and may not be an exact representation of the product you will receive. IMS Supply is not an authorized distributor, reseller or representative of Beckhoff. All product names, trademarks, brands and logos used on this site are the property of their respective owners and are used for identification purposes only.

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