EL2904 EtherCAT Terminal | Beckhoff
The Beckhoff EL2904 is an ethercat terminal. The listed technical data shows communication via TwinSAFE/Safety over EtherCAT, rated IP20, based on the manufacturer's datasheet. It is supplied by SHLY-PLC, an independent industrial-automation distributor: every unit is visually inspected and functionally checked before dispatch, held in ready stock and shipped worldwide for maintenance, spares and retrofit use. Share your application or existing part number and our team will confirm fitment and comparable in-stock alternatives.
Features
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Number of outputs: 4.
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Protocol: TwinSAFE/Safety over EtherCAT.
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Max. output current: 0.5 A (per channel), min. 20 mA (with active current measurement).
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Protection rating: IP20.
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Weight: approx. 100 g.
Specifications
Technical parameters compiled from the manufacturer data sheet and reference documentation.
| Technical Specifications |
| Other |
| Connection technology |
1-/2-wire |
| Specification |
output of output signals |
| Number of outputs |
4 |
| Max. output current |
0.5 A (per channel), min. 20 mA (with active current measurement) |
| Protocol |
TwinSAFE/Safety over EtherCAT |
| Fault response time |
≤ watchdog time (parameterizable) |
| Current consumption power contacts |
load-dependent |
| Current consumption E-bus |
typ. 221 mA |
| Installation position |
horizontal |
| Safety standard |
DIN EN ISO 13849-1:2008 (Cat. 4, PL e) and EN 61508:2010 (SIL 3) |
| Weight |
approx. 100 g |
| Protection rating |
IP20 |
| Ex marking |
ATEX: II 3G Ex ec IIC T4 Gc IECEx: Ex ec IIC T4 Gc cFMus: Class I, Division 2, Groups A, B, C, D Class I, Zone 2, AEx ec IIC T4 Gc |
| Design form |
compact terminal housing with signal LEDs |
| Material |
polycarbonate |
| Side by side mounting by means of |
double slot and key connection |
| Marking |
labeling of the BZxxxx series |
| Wiring |
solid conductor (s), flexible conductor (st) and ferrule (f): spring actuation by screwdriver |
| Connection cross-section |
s*: 0.08…2.5 mm², st*: 0.08…2.5 mm², f*: 0.14…1.5 mm² |
| Connection cross-section AWG |
s*: AWG28…14, st*: AWG28…14, f*: AWG26…16 |
| Stripping length |
8…9 mm |
| Current load power contacts |
Imax: 10 A |
| Dimensions (W x H x D) |
24 mm x 100 mm x 68 mm |
| REACH SVHC |
no |
| POP |
compliant |
| RoHS |
compliant with exemption |
| CA Prop65 |
www.beckhoff.com/prop65 |
Compatibility & Cross-References
Model variants, options and firmware revisions can affect fitment. Before ordering the Beckhoff EL2904 ethercat terminal, share your existing part number or project requirements and our team will cross-reference comparable in-stock Beckhoff units and verify compatibility. This listing is provided by an independent industrial-automation distributor; brand names and part numbers are used for identification only.
Applications
- Distributed digital and analog signal connection between field devices and the controller.
- Cabinet and machine I/O expansion for sensors, switches and actuators.
- Retrofit and spare module replacement in installed I/O systems.
- Flexible I/O configuration for modular machine builds.
Warranty
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Availability: EL2904 is stocked for prompt shipment; contact us for current quantity and lead time.
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Inspection & testing: each unit is visually inspected and functionally checked before packing.
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Delivery: in-stock orders placed before 14:00 ship the same business day; standard worldwide delivery is about 5-8 business days, express shipping is available, and orders over $500 ship free.
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Warranty & returns: covered by our supplier warranty and standard returns policy; contact our team for full terms.
Independent supplier: Beckhoff part EL2904 is supplied by SHLY-PLC, an independent industrial-automation distributor. Brand names and part numbers are used for product identification and remain the property of their respective owners; this listing is not affiliated with, sponsored or endorsed by the manufacturer.
Frequently Asked Questions
Q: What condition is the EL2904 supplied in?
A: Each EL2904 is inspected and functionally checked before sale. Contact us for the current stock condition and quantity.
Q: How quickly can the EL2904 ship?
A: In-stock orders placed before 14:00 ship the same business day. Standard worldwide delivery is about 5-8 business days, express shipping is available and orders over $500 ship free.
Q: Can you confirm compatibility or a replacement for the EL2904?
A: Yes. Share your existing part number or application and our technical team will verify compatibility and provide cross-references to comparable in-stock models.
EL2904 · Technical reference data · Independently supplied by SHLY-PLC