EL3444 - Technical data
Analog specifications | EL3444 |
|---|---|
Number of inputs | 4 x current |
Technology | Distributed-Power-Measurement |
Special features | together with an EL3453, the EL3444 enables the measurement of real power values (for apparent, reactive and active power) via Distributed Power Measurement. |
Oversampling factor | – |
Update interval | 20 ms @ 50 Hz**) |
Internal sampling rate | approx. 9.7 ksps (per channel) |
Sampling type | simultaneously across all channels |
Ground reference | single-ended |
Update time | mains-synchronous |
Parameters measured | EL3444 |
|---|---|
Measured values | Current (and with an EL3453: voltage, active power, reactive power, apparent power, active energy, reactive energy, apparent energy, cos φ, frequency, THD, harmonics (up to the 63rd harmonic) |
Measuring voltage | - |
Measuring current | max. 10 A (AC/DC), via measuring transformer x A/1 A |
Measurement category / overvoltage category | 400 V CAT II; according to EN 61010-2-030 |
Nominal current range | 14 A (peak value, corresponds to ~10 Arms ) |
Technical current measuring range | 20 A (peak value, corresponds to ~14 Arms ) |
Permissible overcurrent | 10 A max. continuous current |
Short-time current carrying capacity | 80 A (sinusoidal) for 1 sec., the upstream use of current-limiting current transformers is recommended |
Measuring error | 1 % relative to full scale value (I), 1.25 % calculated values |
Supply and potentials | EL3444 |
|---|---|
Electrical isolation | 4500 V |
Current consumption Power contacts | – |
Current consumption via E-bus | 160 mA typ. |
Communication | EL3444 |
|---|---|
Configuration | via TwinCAT System Manager |
Distributed clocks | optional (required for distributed power measurement) |
Environmental conditions | EL3444 |
|---|---|
Permissible ambient temperature range during operation | 0 °C ... +55 °C |
Permissible ambient temperature range during storage | -25 °C ... +85 °C |
Relative humidity | 95 %, no condensation |
General data | EL3444 |
|---|---|
Weight | approx. 75 g |
Dimensions (W x H x D) | approx. 15 mm x 100 mm x 70 mm (width aligned: 12 mm) |
on 35 mm mounting rail, conforms to EN 60715 | |
Installation position | variable |
Standards and approvals | EL3444 |
|---|---|
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 |
Protection rating | IP20 |
Marking*) | CE, EAC, UKCA |
*) Real applicable approvals/markings see type plate on the side (product marking).