Power-quality sensor

Three-phase power and energy. LoRaWAN EU868.

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Three-phase power-quality monitoring

Understand the electrical load on your installation

Monitor voltage, current, power factor and energy use across three phases. The DIN-rail unit sends aggregated measurements to the M4, giving your team a history of electrical demand alongside other machine measurements.

Installation
Three phases + neutral · 400 V · 50 Hz
Models
100 A, 250 A or 600 A
Reporting
Ten-minute measurement intervals
From measurement to a useful decision

See your power data in action.

Follow electrical demand over time, compare the three phases and identify where a closer look could help.

Compare consumption

Use energy history to compare shifts, operating periods and changes to your equipment.

Check phase loading

Read voltage, current and power by phase to see how the load is shared.

Investigate power factor

Follow the relationship between active and apparent power, alongside the operating load.

Original iQunet demonstration with an earlier edge server. Play loads the video from YouTube.

Watch on YouTube
Make the electrical load visible

Read the power behind each phase.

The dashboard’s phasor view shows the power components for each phase. This original recording comes from the compressor-monitoring example.

What the letters mean

P Active power
Power converted into work and heat, shown in watts.
Q Reactive power
Power exchanged with electric and magnetic fields, shown in var.
D Distortion component
The dashboard’s calculated distortion-power component. The harmonic frequencies need a waveform measurement.
S Apparent power
The combined voltage and current demand, shown in volt-amperes.

The three colours distinguish L1, L2 and L3. Power-factor trends help identify conditions to investigate; a phasor alone does not locate the source of a problem.

Need to understand the harmonic frequencies?

The LoRaWAN monitor provides ten-minute summaries. Add a current-waveform measurement when you need the detailed signal and spectrum, as in the compressor example.

Explore the compressor example

What would you like to monitor?

Tell us about the circuit, current range and the question you want to answer. We’ll help match the measurements and sensor setup.

Choose the current range for your installation

Each model includes three current sensors for a three-phase installation.

100 A

Split-core current transformers

250 A

Split-core current transformers

600 A

Rogowski coils

Ten-minute reports include voltage, RMS and peak current, power factor, power and energy for comparing demand and consumption across operating periods.

See how electrical demand changes

Compare the load across three phases and follow real and apparent power through the working day.

A compatible LoRaWAN interface receives the sensor reports. The M4 stores them locally and provides access from your browser and other systems.

Actual iQunet software · Illustrative demo data.

Three-phase power monitoring

Actual iQunet software · Illustrative demo data.

Swipe sideways for detail. Tap the image to close.

Technical details

Measurement specs

Product documents

Request a quotation

Power-quality sensor

Include the installation’s current range and the number of circuits to monitor. We’ll specify the sensor set and LoRaWAN connection.

Three-phase power-quality monitoring

Price on requestAvailability confirmed with your quotation

Power-quality sensor

Technical details

Measurement specifications

EU868 power-quality sensor variants

System
Four-wire, three-phase + neutral; 230 V phase-to-neutral / 400 V line voltage; 50 Hz. Direct voltage connections and three current sensors.
Models
LORA281400-EM-100A-EU868: 100 A split-core CTs. LORA281401-EM-250A-EU868: 250 A split-core CTs. LORA281402-EM-600A-EU868: 600 A Rogowski coils.
Measurements
RMS voltage, RMS and peak current, power factor, active/reactive power and energy by phase. The software shows power and energy trends.
Reporting
Aggregated measurements at ten-minute intervals over LoRaWAN EU868.
Installation
35 mm DIN-rail mount; IP40; −40°C to +70°C. 100 × 85 × 22 mm, or 140 mm high including the antenna.

Connection & mounting

Private LoRaWAN and local data storage

Connect the supported sensor through the matching LoRaWAN interface. The edge server stores its decoded measurements locally and makes them available through OPC UA, MQTT and GraphQL.

Use the model-specific installation document for the three-phase and neutral connections and the matching current sensors. Connect the EU868 sensor to a compatible LoRaWAN interface on the M4.

Compatible components

Datasheets & installation

PDF100 A power-quality sensor datasheetPDF100 A power-quality sensor installationPDF250 A power-quality sensor datasheetPDF250 A power-quality sensor installationPDF600 A power-quality sensor datasheetPDF600 A power-quality sensor installation
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