Power Quality Analyzers With Fault Recorder Function
Mobile Solutions
Power Quality Analyzer, Measurement Device and Fault Recorder in One
Products
Application Areas
PQMobile – Mobile Network Analysis and Troubleshooting in the Event of a Fault
»PQ-Box« – The First Choice for Mobile Power Quality Analysis and Rapid Fault Diagnosis
Engineered for tough conditions. Built for rapid analysis. Designed for intuitive operation.
The PQ-Box family combines powerful, portable power and frequency analysers, power meters, and transient recorders in one compact device.
Ease of use and intuitive operation were key priorities during development. For fast and reliable analysis of power quality, these high-precision Class A instruments (IEC 61000-4-30 Ed.4) are equipped with a wide range of trigger functions and pre-installed standard-compliant report templates.
All mobile power quality devices fulfil the high demands of IP65 and can also be installed and used outside. They also have a large operating temperature range of – 20°C to + 60°C.
In addition to IEC 61000-4-30 Ed.4, the measuring devices also fulfil all requirements of the measuring device standards IEC62586-1 and IEC62586-2 Ed.2 for Class A devices.
NEW: Power Quality Services by A. Eberle
Power Quality
Services
Expert Knowledge That Moves You Forward
We offer you power quality audits with troubleshooting in accordance with EN 50160 and IEC 61000 and support you with our expert know-how. As the market leader in the field of mobile power quality devices, we can draw on a wide range of network analyzers with the appropriate accessories for our services.
Our Portfolio at a Glance
»PQMobil« – The First Choice for Portable Grid Analysis & Rapid Fault Diagnosis
Not Sure What Device Is the Right One for You?
Find the Right Power Quality Analyzer for Your Application
PQ-Box 50
PQ-Box 150
PQ-Box 200
PQ-Box 300
20,48 kHz
Sampling frequency voltage20,48 kHz
Sampling frequency current–
4 (16-bit)
Input voltage (resolution)4 (16-bit)
Input current (resolution)–
1 GB
Memory size•
WLAN1,5 h
Operating time via battery 20,48 kHz
Sampling frequency voltage20,48 kHz
Sampling frequency current–
4 (24-bit)
Input voltage (resolution)4 (24-bit)
Input current (resolution)–
4GB (32)
Memory size (optional)S1
WLAN4,0 h
Operating time via battery 40,96 kHz
Sampling frequency voltage40,96 kHz
Sampling frequency current4 MHz
Sampling frequency transient measurement4 (24-bit)
Input voltage (resolution)5 (24-bit)
Input current (resolution)•
Binary input8GB (32)
Memory size (optional)S1
WLAN4,0 h
Operating time via battery 40,96 kHz
Sampling frequency voltage40,96 kHz
Sampling frequency current409,60 kHz
Sampling frequency transient measurement4 (24-bit)
Input voltage (resolution)5 (24-bit)
Input current (resolution)•
Binary input8 GB (32)
Memory size (optional)S1
WLAN3,5 h
Operating time via battery
WinPQ mobile
High-End Analysis Software
The purpose of the program is to prepare the archived power quality measurements and fault events from all PQ Boxes for the viewer and present them appropriately on the screen of the PC.
PQ-Box App
Easily Read out Power Quality Data From Your Tablet or Smartphone
The PQ-Box app enables wireless access to your PQ-Box via WLAN with visualisation and display of various live measurement data, including basic parameterisation of the device. In addition to an overview of the online data, the recorder and events, power and energy, pointer diagram, oscilloscope image and harmonics of the PQ Box can be viewed. Basic parameterisation of the device is also possible. The intuitive operation guarantees simple and mobile operation of your PQ box from A. Eberle.
The Right Box for Every Frequency
Our Mobile Power Quality Analyzers
Today’s devices and equipment such as switched-mode power supplies, frequency converters, controlled drives, charging devices for e-mobiles or LED lighting, work internally with high clock frequencies and power to be controlled efficiently. These can lead to both line-bound and field-bound (coupled) influences in the energy grid.
Typical clock frequencies of systems and devices that we have to reckon with in our networks today:
- 4 kHz to 20 kHz: Frequency converter drive
- 16 kHz to 22 kHz: Solar inverter (400V)
- 2 kHz to 6 kHz: Wind power plant (medium voltage grid)
- 10 kHz to 80 kHz: E-mobile
- 8 kHz to 20 kHz: Active grid filter
- 15 kHz to 25 kHz: UPS systems
- 20 kHz to 200 kHz: Electronic ballast
- 30 kHz to 300 kHz: Switching power supplies
The power quality analyzers from A. Eberle have a high bandwidth which is free of aliasing effects up to 170 kHz (PQ Box-300).
These devices can be used to detect the mains feedback in the super-harmonic range of solar inverters, e-mobiles and frequency converters. The IEC61000-2-2 standard already offers compatibility levels for the public grid of up to 150 kHz. These limit values are already stored in our measurement technology.
News From the Productgroup
PQMobil – News
General Knowledge
Power in Multiphase Systems
7. August 2025
This technical report highlights the special features of power transmission in three-phase systems and offers valuable insights into the optimisation and analysis of modern power grids.[…]
Read more
Blogpost
Visit From the Rudolf Diesel Technical School at A. Eberle
15. July 2025
We were happy to welcome you, Rudolf-Diesel-Fachschule! Yesterday, we had the pleasure of welcoming two classes of future electrical engineering technicians from the Rudolf-Diesel-Fachschule Nürnberg[…]
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Blogpost
TOP 100 Awards 2025: Innovation for the Energy Future
15. July 2025
💡 As part of the TOP 100 Awards 2025, we were honored to receive a special recognition last week in Mainz – personally presented by TV host and science journalist Ranga Yogeshwar.[…]
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Blogpost
University Excursion: Pentecost Excursion of the Friedrich-Alexander-University Erlangen-Nuremberg (FAU)
14. July 2025
As a company dedicated to innovation, education, and the energy transition, we are pleased to have once again supported the Whitsun excursion of Friedrich-Alexander University Erlangen-Nuremberg (FAU)[…]
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Blogpost
Further Growth at A. Eberle
14. July 2025
Welcome to the team! We welcome our new colleagues at A. Eberle.[…]
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Blogpost
Specialist Training on Power Quality
18. June 2025
On 27 May 2025, everything revolved around electricity, faults and how to recognise them in a specialist training course on power quality at the Balthasar Neumann Technical Centre in Trier (BNT).[…]
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General Knowledge
Measuring the Voltage Drop
23. January 2025
The voltage drop is the difference between the voltage at the beginning and end of an electrical line. In an electrical network, the voltage can be reduced by the resistance and impedance of the lines,[…]
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Blogpost
PQ-Box User Training in Başiskele (Turkey) With Our Partner GENETEK Enerji Sistemleri Ltd.
11. December 2024
In August, we held a training course with our partner GENETEK Enerji Sistemleri Ltd for our portable PQ network analyzers in Turkey.[…]
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General Knowledge
Harmonics
17. September 2024
Harmonics are waves whose frequencies are an integer multiple higher or lower than those of the fundamental oscillations. They arise due to non-linear loads in the grid when the electrical voltage is distorted[…]
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Blogpost
International Partner Week 2024 – a Look Back
29. August 2024
Our International Partner Week 2024 – many old friends and new faces were our guests, it was a pleasure.[…]
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General Knowledge
Voltage Monitoring
1. July 2024
Find out everything you need to know about voltage monitoring in this article. What is voltage monitoring, why is voltage monitoring essential for both energy supply companies and industrial companies[…]
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General Knowledge
What Is Load Profile Measurement/Power Measurement?
25. June 2024
This article explains the definition and difference between load profile measurement (RLM), power measurement and measuring the standard load profile. These are important methods for accurately recording[…]
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Special Publication
Ferrari´s Meter vs. Electronic Meter
9. April 2024
This technical report analyzes a power measurement at a large industrial customer. The customer records very high currents and fifth harmonic voltages during production time, which leads to poor voltage[…]
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General Knowledge
Residual Current
6. March 2024
In this article, you will learn about residual current measurement & residual current monitoring and why it is important to measure residual current.[…]
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General Knowledge
Power Quality
6. March 2024
Good power quality is characterized by the fact that the mains voltage actually arriving at the consumer matches the mains voltage promised by the utility company.[…]
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General Knowledge
Reactive Power – Definition, Calculation and Measurement
6. March 2024
The key role of reactive power in electrical engineering: definition, calculation, measurement and the differences to active power and apparent power. Find out how reactive power influences the efficiency[…]
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General Knowledge
What Is Apparent Power and How Is It Calculated?
6. March 2024
This article addresses the question of what apparent power is and how to calculate it. An understanding of apparent power is crucial for the correct dimensioning of inverters and therefore for the optimum[…]
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Special Publication
Angle Determination of Voltage and Current Harmonics in Practice
24. August 2023
Today’s devices and equipment such as switched-mode power supplies, frequency converters, regulated drives, charging devices for e-mobiles or LED lighting work internally with high clock frequencies in[…]
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General Knowledge
All „Supra“ With Your Grid?
23. May 2023
Today’s devices and equipment such as switched-mode power supplies, frequency converters, controlled drives, charging devices for e-mobiles or LED lighting work internally with high clock frequencies in[…]
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