EL3351 | EtherCAT Terminal, 1-channel analog input, measuring bridge, full bridge, 16 bit
the strain gauge can be
drawn from the outputs
+UV and -UV of the terminal
(5 V) or it can be supplied
from an external source.
With external strain gauge
supply only max. ±12 V
are permitted.
EL3351 | EtherCAT Terminal, 1-channel analog input, measuring bridge, full bridge, 16 bit
Measurement technology easily configured: Analog EtherCAT input terminals.
Measurement technology simply integrated: With the analog EtherCAT Terminals.
Precise strain measurement in the I/O system
The EL3351 analog input terminal permits direct connection of a resistor bridge. The bridge voltage, UD, and the supply voltage, UREF, to the bridge are digitized with a 16-bit resolution, and are transmitted along an electrically isolated channel to the supervising automation system. The input channels are available in the form of two 16-bit values for further processing. The resulting measurement can be calculated from the formula: measurement = UD/UREF. Precise acquisition of the supply voltage along with the bridge voltage compensates for long-term and temperature drift.
Product status:
regular delivery
Product information
| Technical data | EL3351 |
|---|---|
| Number of inputs | 2, for 1 resistor bridge in full bridge technology |
| Power supply | via the E-bus |
| Distributed clocks | – |
| Measuring range UD | max. -20…+20 mV |
| Measuring range UREF | max. -12…+12 V |
| Internal resistance | > 200 kΩ (UREF), > 1 MΩ (UD) |
| Supported nominal sensitivity | calculated in PLC, freely selectable |
| Input filter cut-off frequency | 50 Hz default setting, parameterizable |
| Conversion time | 2.5…800 ms, configurable, max. 400 samples/s |
| Power supply UV | 5 V, max. 20 mA |
| Resolution | 16 bit, 32 bit presentation |
| Filter | 50 Hz, configurable |
| Measurement error/uncertainty | < ±0.1% (relative to full scale value, 50 Hz filter) |
| Current consumption E-bus | typ. 170 mA |
| Current consumption power contacts | – |
| Special features | integrated 5 V DC bridge supply |
| Weight | approx. 60 g |
| Operating temperature | -25…+55°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 |
| Pluggable wiring level | for all ESxxxx terminals |
| Protect. rating/installation pos. | IP20/variable |
| Approvals/markings | CE, CCC, UL, ATEX, IECEx, cFMus |
| 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 |
| Housing data | EL-12-8pin | ES-12-8pin |
|---|---|---|
| Design form | compact terminal housing with signal LEDs | terminal housing with pluggable wiring level |
| Material | polycarbonate | |
| Installation | on 35 mm DIN rail, conforming to EN 60715 with lock | |
| 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 | s*: 0.08…1.5 mm², st*: 0.08…1.5 mm², f*: 0.14…1.5 mm² |
| Connection cross-section AWG | s*: AWG28…14, st*: AWG28…14, f*: AWG26…16 | s*: AWG28…16, st*: AWG28…16, f*: AWG26…16 |
| Stripping length | 8…9 mm | 9…10 mm |
| Current load power contacts | Imax: 10 A | |
| Dimensions (W x H x D) | 12 mm x 100 mm x 68 mm | |
*s: solid wire; st: stranded wire; f: with ferrule
| Ordering information | |
|---|---|
| EL3351 | EtherCAT Terminal, 1-channel analog input, measuring bridge, full bridge, 16 bit |
| ES3351 | EtherCAT Terminal, 1-channel analog input, measuring bridge, full bridge, 16 bit, pluggable wiring level |
Loading content ...
| Material compliance | EL3351 |
|---|---|
| REACH SVHC | no |
| POP | compliant |
| RoHS | compliant with exemption |
| RoHS exemption | 7c-I: Lead-containing electrical and electronic components in glass and ceramic materials, excluding dielectric ceramics in capacitors |
| China-RoHS | www.beckhoff.com/china-rohs-io |
| CA Prop65 | www.beckhoff.com/prop65 |
| Disclaimer | This statement and the information contained above are, to the best of our knowledge and belief, accurate, based on the information we have received from our suppliers. This information is in line with the current standard of technology and our suppliers’ technical documentation. The absence of the substances is not verified by Beckhoff Automation by means of analytical tests. When addressed to our customers any information contained in this document is subject to the terms and conditions expressed in the governing customer agreement. Our general terms and conditions apply. |
Loading content ...
Loading content ...
© Beckhoff Automation 2026 - Terms of Use