3-phase power measurement terminal 500 V AC, 10 A EL3433
L3 OK, L3 Error
L2 OK, L2 Error
L1 OK, L1 Error
I3 OK, I3 Error
I2 OK, I2 Error 
I1 OK, I1 Error 
Run LED, N Error 
measurement IN
Top view 
Contact assembly 
extended temperature range

EL3433 | 3-phase power measurement terminal 500 V AC, 10 A

The EL3433 EtherCAT power measurement terminal is a further development of the EL3403. Currents of up to 10 A can be directly measured with the internal current transformers. This way, there are no additional costs for external current transformers. The external bridges 5 & 1', 6 & 2' and 7 & 3' are already pre-wired. As a result, it is possible to directly connect the supply voltage (5', 6' and 7') and the consumer (1, 2 and 3). The EL3433 can deal with simple grid analysis up to the 21st harmonic analysis. Like all measured terminal data, the harmonic content can be read via the process data.

The EL3433 power measurement terminal has neutral conductor current measurement as standard since the 3rd quarter of 2015. At no additional cost to the end user, the terminal features a shunt between pin 4 and pin 8, in order to enable direct neutral conductor analysis.

Technical data EL3433
Number of inputs 4 x current, 3 x voltage
Technology 3-phase power measurement for alternating voltages
Oversampling factor
Distributed clocks
Conversion time mains-synchronous
Measured values current (I1, I2, I3, In), voltage, effective power, reactive power, apparent power, energy, cos φ, frequency, harmonic
Measuring voltage max. 500 V AC 3~ (ULX-N: max. 288 V AC)
Measuring current max. 10 A (AC)
Resolution 1 μA, 0.1 mV, 10 mW
Measuring error 0.5 % relative to full scale value (U/I), 1 % calculated value
Electrical isolation 4500 V
Current consumption power contacts
Current consumption E-bus typ. 200 mA
Special features direct current measurement, current measurement,harmonic analysis, single-phase operation also possible
Weight approx. 100 g
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
Protect. class/installation pos. IP 20/variable
Approvals CE, UL
Related products
EL3403 3-phase power measurement terminal up to 500 V