Beckhoff Automation GmbH & Co. KG
EL1904 | safety input module; safety function: Safety-rated I/O or control; number of inputs: 4; network protocol: EtherCAT
Manufacturer part number: EL1904ESYS SKU: EL1904
Net unit price, VAT 0%
€206.29
VAT 25.5% and delivery are shown separately in the request summary.
Current availability
Current available stock: 187 pcs
- Minimum order
- 1 pcs
- Order increment
- 1 pcs
- Availability checked
- 1 Sept 2026, 08:45
Beckhoff Automation GmbH & Co. KG EL1904 is a safety input module. Key selection facts are safety function: Safety-rated I/O or control; number of inputs: 4; network protocol: EtherCAT.
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Information for product selection
Typical applications
- Use EL1904 in machine input circuits when the design calls for safety function: Safety-rated I/O or control.
- Choose EL1904 for machine input circuits that must provide number of inputs: 4.
- Before ordering EL1904, verify network protocol: EtherCAT against the machine input circuits design.
Key specifications
- Product type
- safety input module
- Safety function
- Safety-rated I/O or control
- Connection technology
- 1-/2-wire
- Number of inputs
- 4
- Protocol
- TwinSAFE/Safety over EtherCAT
- Response time
- typ. 4 ms (read input/write to E-bus)
Show additional verified specifications
- Fault response time
- ≤ watchdog time (parameterizable)
- Current consumption power contacts
- see documentation
- Current consumption E-bus
- typ. 200 mA
- Installation position
- horizontal
- Network protocol
- EtherCAT
- Safety standard
- DIN EN ISO 13849-1:2008 (Cat. 4, PL e) and EN 61508:2010 (SIL 3)
Lifecycle
- Status
- Active
Compatibility and related parts
EtherCAT Terminal, 4-channel digital input, 24 V DC, TwinSAFE
Product series: Documented manufacturer system or product-family context; does not imply interchangeability with every member
