Analog input

EL3443

L3 error

L2 error

L1 error

System OK

L3 OK

L2 OK

L1 OK

Run LED

L1

L2

L3

N

IL1

IL2

IL3

N

Top view

Contact assembly

The EL3443 EtherCAT Terminal enables the measurement of all relevant electrical data of the supply network and carries out simple pre-evaluation. The voltage is measured via 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 EL3443 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 EL3443 offers extended functionality for mains analysis and energy management.

Technical data | EL3443 | EL3443-0010 |
---|---|---|

Number of inputs | 3 x current, 3 x voltage | |

Technology | 3-phase power measurement | |

Oversampling factor | – | |

Distributed clocks | optional | |

Update interval | one mains period (20 ms at 50 Hz) | |

Update time | net-synchronous | |

Measured values | current, voltage, effective power, reactive power, apparent power, active energy, reactive energy, apparent energy, cos φ, frequency, THD, harmonic (up to 40th harmonic) | |

Measuring voltage | max. 480 V AC 3~ (ULX-N: max. 288 V AC/DC) | |

Measuring current | max. 1 A (AC/DC), via measuring transformers x A/1 A | max. 5 A (AC/DC), via measuring transformers x A/5 A |

Measuring error | 0.3 % relative to full scale value (U/I), 0.6 % calculated values (see documentation) | |

Monitoring function | phase order, phase failure, phase asymmetry, undervoltage/overvoltage (adjustable) | |

Electrical isolation | 2500 V | |

Current consumption power contacts | – | |

Current consumption E-bus | typ. 120 mA | |

Special features | single-phase operation possible, mains monitoring functionality, precise detection of zero voltage crossing | |

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 | |

Related products | |
---|---|

EL3423 | 3-phase energy measurement terminal Economy |

EL3483 | 3-phase grid status terminal for voltage, frequency and phases |