The EL3453 EtherCAT power measurement terminal has voltage inputs for direct monitoring of high-capacity generators up to max. 690 V AC, as is common in the wind industry, for example. No upstream voltage transformer is required. The four current inputs are electrically isolated so that the terminal can be used in all common grounded current transformer configurations such as 2- or 3-transformer configurations with star or delta connection incl. neutral conductor current measurement. The EL3453 can be used for simple grid analysis up to the 63rd harmonics analysis. Alternatively, all readings can be combined in a power quality factor for simplified diagnostics. Like all measured terminal data, the harmonic content can be read via the process data. The EL3453 offers the “ExtendedRange” feature enabling the use of the full technical measuring range, which equals 130% of the specified nominal measuring range.
In addition, the EL3453 comes with the option of transmitting the times of the last voltage and current zero crossing to the controller via XFC technology. This can be used, for example, to carry out switching operations to suit the application.
Product status:
regular delivery
Product information
Technical data | EL3453 |
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Number of inputs | 4 x current, 3 x voltage |
Oversampling factor | – |
Distributed clocks | optional |
Update interval | half mains period (10 ms at 50 Hz) |
Measured values | current, voltage, effective, reactive and apparent power, active, reactive and apparent energy, cos φ, frequency, THD, harmonic (up to 63rd harmonic) |
Measuring voltage | max. 690 V AC 3~ (ULX-N: max. 400 V AC) |
Measuring current | adjustable, 100 mA AC, 1 A AC (default), 5 A AC; potential-free |
Measurement error/uncertainty | 0.3% relative to full scale value (U/I), 0.6% calculated value (see documentation) |
Update time | net-synchronous |
Monitoring function | phase order, phase failure, phase asymmetry, undervoltage/overvoltage (adjustable) |
Electrical isolation | 4500 V |
Current consumption power contacts | – |
Current consumption E-bus | typ. 260 mA |
Special features | mains monitoring, precise detection of zero voltage and zero current crossing, optional single-phase operation |
Operating/storage temperature | -25…+60°C/-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 |
Approvals/markings | CE, UL |
Housing data | EL-24-2x8pin |
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Design form | compact terminal housing with signal LEDs |
Material | polycarbonate |
Dimensions (W x H x D) | 24 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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