The EL3403 EtherCAT Terminal enables the measurement of all relevant electrical data of the supply network. The voltage is measured via the direct connection of L1, L2, L3 and N. The current of the three phases L1, L2 and L3 is fed via simple current transformers. All measured currents and voltages are available as root-mean-square values. In the EL3403 version, the effective power and the energy consumption for each phase are calculated. The root-mean-square value of voltage U, current I and the effective power P, apparent power S, reactive power Q, frequency F and phase shift angle cos φ can be derived. The EL3403 provides a comprehensive network analysis and an energy management option.
Product status:
regular delivery (not recommended for new projects) | recommended alternative: EL3443
Product information
| Technical data | EL3403 | ES3403 |
|---|---|
| Number of inputs | 3 x current, 3 x voltage |
| Oversampling factor | – |
| Distributed clocks | – |
| Conversion time | mains-synchronous |
| Measured values | current (I1, I2, I3), voltage, effective power, reactive power, apparent power, energy, cos φ, frequency |
| Measuring voltage | max. 500 V AC 3~ (ULX-N: max. 288 V AC) |
| Measuring current | max. 1 A (AC), via measuring transformers x A/1 A |
| Resolution | 1 µA, 0.1 mV, 10 mW |
| Measurement error/uncertainty | 0.5% relative to full scale value (U/I), 1% calculated value |
| Measuring procedure | true RMS |
| Update time | net-synchronous |
| Electrical isolation | 1500 V |
| Current consumption E-bus | typ. 120 mA |
| Current consumption power contacts | – |
| Bit width in the process image | 62 byte PM input, 3 byte PM output |
| Special features | true RMS value calculation, optional single-phase operation |
| Weight | approx. 75 g |
| Storage temperature | -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 |
| Pluggable wiring level | for all ESxxxx terminals |
| Protect. rating/installation pos. | IP20/variable |
| Approvals/markings | CE, UL |
| Housing data | EL-12-8pin | ES-12-8pin |
|---|---|---|
| Design form | compact terminal housing with signal LEDs | terminal housing with pluggable wiring level |
| Material | polycarbonate | |
| 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 BZxxxx 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 | s*: 0.08…1.5 mm², st*: 0.08…1.5 mm², f*: 0.14…1.5 mm² |
| Connection cross-section AWG | s*: AWG28…14, st*: AWG28…14, f*: AWG26…16 | s*: AWG28…16, st*: AWG28…16, f*: AWG26…16 |
| Stripping length | 8…9 mm | 9…10 mm |
| Current load power contacts | Imax: 10 A | |
| Dimensions (W x H x D) | 12 mm x 100 mm x 68 mm | |
*s: solid wire; st: stranded wire; f: with ferrule
| Ordering information | |
|---|---|
| EL3403 | EtherCAT Terminal, 3-channel analog input, power measurement, 500 V AC, 1 A, 16 bit |
| ES3403 | EtherCAT Terminal, 3-channel analog input, power measurement, 500 V AC, 1 A, 16 bit, pluggable wiring level |
| EL3403-0010 | EtherCAT Terminal, 3-channel analog input, power measurement, 500 V AC, 5 A, 16 bit |
| EL3403-0026 | EtherCAT Terminal, 3-channel analog input, power measurement, 500 V AC, 1 A, 16 bit, without EMC discharge |
| EL3403-0100 | EtherCAT Terminal, 3-channel analog input, power measurement, 500 V AC, 0.1 A, 16 bit |
| EL3403-0111 | EtherCAT Terminal, 3-channel analog input, power measurement, 500 V AC, 0.01/0.1/1 A, 16 bit |
| EL3403-0333 | EtherCAT Terminal, 3-channel analog input, power measurement, 500 V AC, 333 mV, 16 bit |
Loading content ...
| Material compliance | EL3403 |
|---|---|
| REACH SVHC | no |
| POP | compliant |
| RoHS | compliant with exemption |
| RoHS exemption | 7c-I: Lead-containing electrical and electronic components in glass and ceramic materials, excluding dielectric ceramics in capacitors |
| China-RoHS | www.beckhoff.com/china-rohs-io |
| CA Prop65 | www.beckhoff.com/prop65 |
| Disclaimer | This statement and the information contained above are, to the best of our knowledge and belief, accurate, based on the information we have received from our suppliers. This information is in line with the current standard of technology and our suppliers’ technical documentation. The absence of the substances is not verified by Beckhoff Automation by means of analytical tests. When addressed to our customers any information contained in this document is subject to the terms and conditions expressed in the governing customer agreement. Our general terms and conditions apply. |
Loading content ...
Loading content ...
Loading content ...
© Beckhoff Automation 2026 - Terms of Use

