Press release - Gurugram, 9 April 2025
Revolutionising safety through smart earthing management with DEHNrecord SD EPMS
DEHNrecord SD EPMS is a next-generation online earthing management system for the protection and safety of earthed installations in electrical infrastructure. It offers an intelligent end-to-end automation solution that helps to increase safety, improve reliability, maximise operating time and optimise the use of existing infrastructure. Whether airports, data centres, refineries, substations, train stations, EV stations or hospitals – the parameters for each application can be defined by the user.
DEHNrecord SD EPMS offers a one-touch IoT platform (web and mobile app) that enables comprehensive, real-time monitoring of the entire earthing infrastructure. Intelligent diagnostics and data-driven measures increase system efficiency and reliability. The device has three separate channels for measuring earth resistance, neutral-to-earth voltage and detecting an open earth connection. The universally recognised 3-pole method is used for the earth resistance measurement because it produces precise and reliable results. This method uses three electrodes: a current probe, a voltage probe and the earth electrode.
In addition, the earth fault current can be measured at system level using external CBCT (core balance current transformer). This is an important function for detecting and monitoring earth faults in electrical systems. If necessary, protective measures can be initiated quickly, thus increasing the safety and reliability of electrical systems. DEHNrecord SD EPMS supports wired and wireless connectivity via WiFi and TCP/IP enable real-time data to be updated in the cloud. Local data access is also possible via RS485 Modbus.

Petra Raab ⎟ Head of External Communications
Trade Press
About DEHN SE
DEHN is a leading, international family-owned electrical engineering company based in Neumarkt, Germany. With its comprehensive portfolio, DEHN addresses the megatrends of our time - from e-mobility and renewables to the protection of critical infrastructure. The company offers solutions and services for lightning and surge protection as well as safety equipment – fields in which, with more than 1,100 patents, DEHN is a leading innovator. The company’s products protect people and buildings, systems and telecommunications technology, process industry, as well as photovoltaic systems and wind turbines. With more than 2,500 employees worldwide, DEHN achieved revenue of around 470 million euros in the fiscal year 2023/2024. Alongside more than 115 years of experience, this constant growth is based on the highest quality standards and a consistent orientation towards customers and markets worldwide.