During technical comparisons, EL1254 appears alongside Beckhoff El9410, El9550 Beckhoff and Beckhoff El2809 so engineers assess signal types, ingress protection, and ambient tolerances accurately.
EL1254 - Beckhoff EtherCAT Terminal
EL1254 Beckhoff EtherCAT Terminal Technical Specifications
| Brand | Beckhoff |
| Product Type | EtherCAT Terminal |
| Product | EL1254 |
EL1254 Beckhoff EtherCAT Terminal Technical Specifications
| Specification | Value |
|---|---|
| Connection technology | 4-wire |
| Specification | similar to EN 61131-2, type 3, â0â: -3â¦5 V DC, â1â: 11â¦30 V DC, typ. 3 mA input current |
| Number of inputs | 4 |
| Nominal voltage | 24 V DC (-15%/+20%) |
| “0” signal voltage | -3..+5 V (EN 61131-2, type 3) |
| “1” signal voltage | 11...30 V (EN 61131-2, type 3) |
| Input current | typ. 3 mA (similar to EN 61131-2, type 3) |
| Input filter | typ. < 1 µs |
| Distributed clocks | yes |
| Current consumption power contacts | typ. 20 mA + load |
| Current consumption E-bus | typ. 80 mA |
| Electrical isolation | 500 V (E-bus/field potential) |
| Configuration | no address or configuration setting |
| Special features | timestamping, latch last edge |
| Weight | approx. 55 g |
| Operating temperature | 0…55°C |
| Storage temperature | -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. rating/installation pos. | IP20/variable |
| Approvals/markings | CE |
| Housing - Design form | compact terminal housing with signal LEDs |
| Housing - Material | polycarbonate |
| Housing - Dimensions (W x H x D) | 12Â mm x 100Â mm x 68 mm |
| Housing - Installation | on 35 mm DIN rail, conforming to EN 60715 with lock |
| Housing - Side by side mounting by means of | double slot and key connection |
| Housing - Marking | labeling of the BZxxxx series |
| Housing - Wiring | solid conductor (s), flexible conductor (st) and ferrule (f): spring actuation by screwdriver |
| Housing - Connection cross-section | s*: 0.08â¦2.5 mm²,st*: 0.08â¦2.5 mm²,f*: 0.14â¦1.5 mm² |
| Housing - Connection cross-section AWG | s*: AWG28...14,st*: AWG28...14,f*: AWG26...16 |
| Housing - Stripping length | 8…9 mm |
| Housing - Current load power contacts | Imax: 10 A |
| Bit width in the process image | 4 x input + 4 x 16 byte timestamp |
| Precision of timestamp in the terminal | 10 ns (+ input delay) |
| Input delay TON/TOFF | < 1 µs |
| Distributed clock precision | << 1 µs |
| Resolution timestamp | 1 ns |
| Time resolution signal | 1 ns |
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