The KL3453 power measurement bus terminal with up to 690 V AC, the voltage inputs are optimized for the direct monitoring of high-capacity generators, as in the wind power 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 KL3453 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. The KL3453 offers the ExtendedRange feature enabling the use of the full technical measuring range, which equals 130% of the specified nominal measuring range.
Product status:
product announcement | estimated market release 4th quarter 2024
Product information
Technical data | KL3453 |
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Number of inputs | 4 x current, 3 x voltage |
Technology | 3-phase power measurement |
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 with up to 10 ms at 50 Hz |
Electrical isolation | 4500 V |
Current consumption power contacts | – |
Current consumption K-bus | typ. 200 mA |
Bit width in the process image | input/output: 4 x 32 bit data, 4 x 16 bit control/status |
Special features | mains monitoring, optional single-phase operation |
Operating/storage temperature | 0…+55°C/-25…+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 |
Housing data | KL-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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