EL3008-0003 | EtherCAT Terminal, 8-channel analog input, voltage, ±3 V, 16 bit, cascaded
EL3008-0003 | EtherCAT Terminal, 8-channel analog input, voltage, ±3 V, 16 bit, cascaded
Beckhoff product highlights at Hydrogen + Fuel Cells Europe
The EL3008-0003 is designed for measuring stacked voltages up to 1000 V CAT II, such as those found in accumulators and fuel cells. The negative pole of one cell is also the positive pole of the next. In combination with the high galvanic isolation to the E-bus, these terminals can be used to record large cell stacks with minimal wiring. This allows cell behavior to be monitored during normal operation and facilitates rapid responses in case of malfunctions.
Product status:
product announcement | estimated market release 1st quarter 2025
Product information
| Technical data | Input |
|---|---|
| Number of inputs | 8 |
| Function | voltage measurement |
| Wiring | 2-wire |
| Ground reference (input) | cascaded channels |
| Max. sampling rate | min. 500 µs (max. 2 ksps) per channel |
| Sampling type | multiplex, approx. 60 µs delay between. Ch1/2 |
| Internal resistance | > 8 MΩ |
| Input filter limit frequency | 1.5 kHz |
| Rise time | 3 ms typ. (0…90%) |
| Dielectric strength | ±13 V per channel to AGND |
| Measuring range, nominal | -3…+3 V |
| Measuring range, technical | -3.22…+3.22 V |
| Resolution | 16 bit (incl. sign) |
| Measurement error/uncertainty | < ±0.1% (at 25°C ±5°C, otherwise < ±0.2%) |
| Measurement class/overvoltage class | 300 V CAT II, 1000 V CAT II with additional touch protection cover; to EN61010-2-030 |
| Electrical isolation channel/channel | – |
| Electrical isolation channel/bus | reinforced insulation, test voltage 6 kV DC, production test |
| Electrical isolation channel/SGND | reinforced insulation, test voltage 6 kV DC, production test |
| Technical data | General |
|---|---|
| Power supply | via the E-bus |
| Distributed clocks | – |
| Electrical isolation | Channels/E-bus: 300 V CAT II, with insulating cover 1000 V CAT II |
| Current consumption E-bus | typ. 150 mA |
| Special features | cascaded channels, ExtendedRange 107 %, FIR/IIR filter activatable |
| Operating/storage temperature | 0…+55°C/-25…+85°C |
| Weight | approx. 90 g |
| 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 |
| Approvals/markings | CE |
| Protect. rating/installation pos. | IP20/variable |
| Housing data | EL-24 |
|---|---|
| Design form | compact terminal housing with signal LEDs |
| Material | polycarbonate |
| Dimensions (W x H x D) | 24 mm x 100 mm x 52 mm |
| 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 | – |
| Wiring | specific push-in connection |
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