6-channel current input terminal 1 A AC/DC for distributed power measurement EL3446
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EL3446 | 6-channel current input terminal 1 A AC/DC for distributed power measurement

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.

Technical data EL3446
Number of inputs 6 x current
Technology 6-channel distributed power measurement
Oversampling factor
Distributed clocks optional (necessary for distributed power measurement)
Update interval one mains period (20 ms at 50 Hz)
Update time net-synchronous
Measured values current, voltage, effective, reactive and apparent power, active, reactive and apparent energy, cos φ, frequency, THD, harmonic (up to 40th harmonic)
Measuring current max. 1 A (AC/DC), via measuring transformers x A/1 A
Measuring error 0.3 % relative to full scale value (U/I), 0.6 % calculated values (see documentation)
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.
Weight approx. 75 g
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
Approvals/markings CE
Related products  
EL3423 3-phase energy measurement terminal Economy
EL3443 3-phase power measurement terminal with extended functionality
EL3483 3-phase grid status terminal for voltage, frequency and phases
Product announcement
estimated market release 1st quarter 2020