EL3051 - Beckhoff EtherCAT Terminal Analog Input
Technical Specifications of Beckhoff EtherCAT Terminal Analog Input EL3051:

| Brand | Beckhoff |
| Product Type | EtherCAT Terminal Analog Input |
| Product | EL3051 |
EL3051 Beckhoff EtherCAT Terminal Analog Input Technical Specifications
| Specification | Value |
|---|---|
| Number of inputs | 1 (single-ended) |
| Measurement error/uncertainty | typ. 85 Ω |
| Input filter limit frequency | 1 kHz |
| Dielectric strength | max. 30 V |
| Measurement error/uncertainty 2 | < ±0.3% (relative to full scale value) |
| 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*: 0.0..2.5 mm²,st*: 0.08..2.5 mm²,f*: 0.14...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 |
| Power supply | via the E-bus |
| Conversion time | 0.625 ms default setting, configurable, multiplex |
| Electrical isolation | 500 V (E-bus/signal voltage) |
| Current consumption E-bus | typ. 130 mA |
| Bit width in the process image | inputs: 4 byte |
| Special features | standard and compact process image, activatable FIR/IIR filters, limit value monitoring |
| Weight | approx. 60 g |
| Operating temperature | -25…+60°C |
| Storage temperature | -40…+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, CCC, ATEX, IECEx |
| Ex marking | ATEX:II 3 G Ex ec IIC T4 GcIECEx:Ex ec IIC T4 Gc |
| Pluggable wiring | for all ESxxxx terminals |
| Signal current | 4...20 mA |
The Beckhoff EL3051 EtherCAT Terminal Analog Input is engineered to capture analog current signals with high precision, making it an essential module for advanced automation setups. Designed with a single-ended input channel, it supports 4–20 mA signal ranges and delivers accurate conversion with a typical error margin below ±0.3%. With its compact housing of just 12 mm width and integrated signal LEDs, the EL3051 enables easy monitoring and efficient use of control cabinet space. Electrical isolation rated at 500 V and IP20 protection ensures safe operation in demanding industrial environments.
Built on Beckhoff’s proven EtherCAT Terminal Analog Input technology, the EL3051 includes integrated FIR/IIR filters, limit value monitoring, and a configurable conversion time as fast as 0.625 ms. Its compatibility with CE, CCC, ATEX, and IECEx certifications demonstrates compliance with global industrial standards. With an operating temperature range from -25°C to +60°C and resistance to vibration and shock per EN 60068 standards, it delivers dependable performance even in harsh conditions. The module draws minimal power through the E-bus while ensuring seamless integration into distributed I/O systems.
Engineers trust the Beckhoff EL3051 for machine building, process automation, and energy monitoring applications where stable and accurate analog signal capture is critical. Like other models in the Beckhoff EtherCAT Terminal Analog Input series, it combines efficiency, durability, and flexibility—making it a go-to choice for modern automation infrastructures worldwide.







