In sourcing discussions, EL3174 is often placed next to Beckhoff El9410, El9550 Beckhoff and Beckhoff El2809 so procurement teams can align budgets and technical requirements effectively.
EL3174 - Beckhoff EtherCAT Terminal Analog Input
Technical Specifications of Beckhoff EtherCAT Terminal Analog Input EL3174:
| Brand | Beckhoff |
| Product Type | EtherCAT Terminal Analog Input |
| Product | EL3174 |
EL3174 Beckhoff EtherCAT Terminal Analog Input Technical Specifications
| Specification | Value |
|---|---|
| Number of inputs | 4 |
| Ground reference (input) | voltage: differential, current: single-ended |
| Measurement error/uncertainty | > 200 kΩ | typ. 85 Ω |
| Input filter limit frequency | 5 kHz |
| Dielectric strength | max. 30 V (current measurement) |
| Measuring range, nominal | -10/0…+10 V | -20/0/+4…+20 mA |
| Measuring range, technical | -10.73…+10.73 V | -21.47…+21.47 mA |
| Measurement error/uncertainty 2 | < ±0.3% (relative to full scale value) |
| Housing - Design form | HD (High Density) 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 conductors (s): direct plug-in technique; fine-stranded conductors (st) and ferrule (f): spring actuation by screwdriver |
| Housing - Connection cross-section | s*: 0.08…1.5 mm², st*: 0.25…1.5 mm², f*: 0.14…0.75 mm² |
| Housing - Connection cross-section AWG | s*: AWG28…16, st*: AWG22…16, f*: AWG26…19 |
| Housing - Stripping length | 8…9 mm |
| Housing - Current load power contacts | Imax: 10 A |
| Power supply | via the E-bus |
| Distributed clocks | yes |
| Distributed clock precision | << 1 µs |
| Common-mode voltage UCM | max. 35 V (voltage measurement) |
| Conversion time | minimum 150 µs |
| Electrical isolation | 500 V (E-bus/signal voltage) |
| Current consumption E-bus | typ. 180 mA |
| Bit width in the process image | inputs: 16 byte |
| Configuration | no address or configuration setting |
| Special features | U/I parameterizable, ExtendedRange, standard and compact process image, activatable FIR/IIR filters |
| Weight | approx. 65Â 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, UL, ATEX, IECEx, cFMus |
| Current consumption power contacts | load-dependent |
| Ex marking | ATEX:Â Â II 3G Ex ec IIC T4 GcIECEx:Â Â Ex ec IIC T4 GccFMus:Â Â Class I, Division 2, Groups A, B, C, DÂ Â Class I, Zone 2, AEx ec IIC T4 Gc |
The Beckhoff EL3174 EtherCAT Terminal Analog Input is designed with four differential inputs that support both voltage (-10/0…+10 V) and current (-20/0/+4…+20 mA) signals, giving engineers the flexibility to parameterize according to application needs. Its conversion time as low as 150 µs and 5 kHz input filter frequency make it ideal for real-time signal monitoring, while the ±0.3% measurement accuracy ensures dependable results. With distributed clocks (<1 µs precision) and ExtendedRange support, it enables high-speed synchronization across automation networks.
Reliability is reinforced with 500 V electrical isolation, surge protection up to 35 V, and compliance with rigorous EMC, vibration, and shock resistance standards. The compact HD housing (12 mm wide) with LED indicators provides easy diagnostics, while DIN rail mounting and plug-in wiring simplify installation. The terminal consumes only 180 mA from the E-bus and is certified with CE, UL, ATEX, IECEx, and cFMus, making it suitable for global industrial compliance. Its robust polycarbonate construction ensures durability in ambient operating temperatures of -25°C to +60°C.
Applications of the EL3174 EtherCAT Terminal Analog Input extend across machine automation, process control, test benches, power distribution monitoring, and manufacturing plants. Junior technicians benefit from its plug-and-play configuration without manual addressing, while senior engineers appreciate the precision filtering (FIR/IIR) and limit value monitoring features for complex process optimization. By combining compact design, high accuracy, and Beckhoff’s proven EtherCAT platform, the EL3174 is trusted to deliver dependable analog measurement in demanding industrial environments.
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