EL3446 | EtherCAT Terminal, 6-channel analog input, current, 1 A, 24 bit, distributed power measurement
EL3446 | EtherCAT Terminal, 6-channel analog input, current, 1 A, 24 bit, distributed power measurement
Distributed Clocks: the integrated time management system in EtherCAT
Distributed power measurement with SCT current transformers
Highly scalable: EtherCAT Terminals for energy management
Measurement technology easily configured: Analog EtherCAT input terminals.
Measurement technology simply integrated: With the analog EtherCAT Terminals.
The EL3446 EtherCAT Terminal enables the measurement of all relevant electrical data of the supply network and carries out simple pre-evaluation. Since the EL3446 itself has no voltage inputs, the voltage measured values are transmitted via EtherCAT by an EL3443 to be installed once per network. The current of up to six phases is fed via simple current transformers. All measured currents and voltages are available as root-mean-square values. In the EL3446 terminal, the effective power and energy consumption for each phase are calculated. The RMS values of voltage U and current I as well as the active power P, apparent power S, reactive power Q, frequency f, phase shift angle cos φ and harmonic are available. The EL3446 offers extended functionality for mains analysis and energy management.
Product status:
regular delivery
Product information
| Technical data | EL3446 |
|---|---|
| Number of inputs | 6 x current |
| Oversampling factor | – |
| Distributed clocks | optional (necessary for distributed power measurement) |
| Update interval | 100 ms |
| Measured values | current (and with the EL3443: voltage, effective, reactive and apparent power, active, reactive and apparent energy, cos φ, frequency, THD, harmonic (up to 40th harmonic)) |
| Measuring voltage | – |
| Measuring current | max. 1 A (AC/DC), via measuring transformers x A/1 A |
| Measurement error/uncertainty | 0.3% relative to full scale value (I),
0.6% calculated value (see documentation) |
| Update time | net-synchronous |
| Monitoring function | undercurrents/overcurrents (adjustable) |
| Electrical isolation | 2500 V |
| Current consumption power contacts | – |
| Current consumption E-bus | typ. 120 mA |
| Special features | In combination with an EL3443, the EL3446 allows the measurement of real power values (for apparent, reactive and active power) via distributed power measurement. |
| Operating/storage temperature | 0…+55°C/-25…+85°C |
| Weight | approx. 75 g |
| Relative humidity | 95%, no condensation |
| Vibration/shock resistance | conforms to EN 60068-2-6/EN 60068-2-27 |
| Approvals/markings | CE, UL |
| Housing data | EL-12-8pin |
|---|---|
| Design form | compact terminal housing with signal LEDs |
| Material | polycarbonate |
| Dimensions (W x H x D) | 12 mm x 100 mm x 68 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 | labeling of the BZxxx 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 |
| Connection cross-section AWG | s*: AWG28…14, st*: AWG28…14, f*: AWG26…16 |
| Stripping length | 8…9 mm |
| Current load power contacts | Imax: 10 A |
*s: solid wire; st: stranded wire; f: with ferrule
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