A. Eberle GmbH & Co. KG, based in Nuremberg, Germany, is an independent, medium-sized company with over 40 years of experience specializing in solutions for monitoring and controlling electrical energy. The company develops products and systems for utilities, grid operators, and industrial enterprises with their own power supply infrastructure. A. Eberle stands for “Made in Germany” quality, a high level of in-house production, and customer service based on partnership and trust.
Products and solutions at a glance
PQSys – Permanently installed power quality monitoring systems
The PQSys product family consists of fixed installed power quality analysers, fault recorders and transient recorders for continuous monitoring of low, medium and high-voltage grids. They are primarily used by network operators and industrial clients to ensure compliance with voltage quality standards (e.g. EN 50160) and to analyse network disturbances.

PQMobil – Mobile grid analysers
The portable devices of the PQMobil series (PQ-Box ONE, 50, 150, 200 & 300) enable temporary grid analyses in the field. They are ideal for fault finding, condition assessment, or commissioning – particularly in distribution grids or industrial plants.
REGSys® – Automatic voltage regulation (AVR)
With the globally popular REGSys® voltage regulation system, A. Eberle offers an intelligent solution for controlling and monitoring transformers with tap changers. The systems ensure stable voltage conditions in medium and high-voltage applications in conventional and renewable energy generation plants or substations, and adapt flexibly to changing grid conditions.
LVRSys® – Low-voltage regulation
LVRSys® is a system for voltage regulation in low-voltage grids – serving as an alternative to traditional grid expansion. It enables grid operators to ensure a stable supply in the low-voltage grid even with high PV feed-in or load peaks, for example from electric vehicle charging stations.
EORSys – Earth fault regulation/-indication & current injection
The EORSys products detect and regulate earth faults and short circuits in medium-voltage grids, and safely and efficiently inject current. They are an integral part of modern protection and control concepts in power supply grids.
Power quality services – consulting & measurement services
In addition to its own measurement and regulation devices, A. Eberle offers comprehensive power quality services: from measurement planning and on-site execution to evaluation and interpretation of results. These services are aimed at utilities, industry, and operators of critical infrastructures.

Globally active – locally rooted
A. Eberle operates worldwide – with partners in over 60 countries. The devices are internationally certified and used on all continents. Through trade fair appearances, (online) training sessions, and global support, the company maintains a global presence and stays close to its customers.
100% made in Germany – development & manufacturing in and around Nuremberg
All products are developed and the main part is also manufactured in and around Nuremberg. Each A- Eberle product is 100% Made in Germany. In-house laboratories, modern production lines, and experienced employees ensure A. Eberle’s quality standards – today and in the future.
Digital solutions & software platforms
In addition to hardware solutions, A. Eberle offers self-developed, intuitive software tools for control, visualization, remote monitoring, and analysis for each of its products. Solutions such as WebPQ and GridVis enable efficient integration into existing IT infrastructures and provide maximum transparency in the grid.
Future outlook
As a hidden champion and family-owned company with strong innovative capabilities, A. Eberle will continue to be a reliable partner for grid operators and industrial customers worldwide.