UK Servers

Project Overview

The project was divided into two parts to effectively meet the client's requirements.


Part 1: Implementing three pairs of N+1 paralleled Legrand KeorMod 250kVA UPS Systems

The initial phase involved installing 6 Legrand KeorMod 250kVA UPS systems in an N+1 configuration. Due to the nature of the premises, which is housed in an old building, the client had only a single power supply available. This presented a unique challenge as the desired UPS size exceeded the capacity of a single power supply.

To address this, Power Control Ltd, the chosen provider for this project, skilfully split the single power supply across two UPS units. This setup ensured the required redundancy while overcoming the limitation of a single power supply.

Each UPS unit was equipped with its own set of batteries, providing a 10-minute rated autonomy at a 200kW load (100kW per UPS). Furthermore, the battery stand and DC Isolation were configured to accommodate an additional battery string per unit, allowing for future expansion as the client's needs evolve.

The most challenging aspect of this phase was the intricate process of splitting the single power supply to effectively power both UPS units, ensuring seamless operation and redundancy

Part 2: Integration of Legrand 150kVA N+1 UPS System

In the second phase of the project, the focus shifted to integrating a Legrand 150kVA UPS system in an N+1 configuration to further enhance the power infrastructure. This UPS system was installed with a new Legrand side cabinet, the first one in the country, a pioneering solution in the UK market, designed to facilitate top cable entry for streamlined installation and maintenance.

Additionally, to optimise performance and ensure compatibility with the existing infrastructure, the following components were integrated:

The UPS System

The Legrand KeorMod UPS system is a highly reliable and efficient solution designed to ensure uninterrupted power supply for critical applications. With its modular design and scalability, the KeorMod series offers flexibility to adapt to varying power requirements, making it suitable for a wide range of installations, including data centres, industrial facilities, and commercial buildings. Equipped with advanced features such as parallel redundancy configuration and hot-swappable modules, the KeorMod UPS system provides enhanced reliability and easy maintenance, minimising downtime, and maximising operational continuity. Its robust construction and cutting-edge technology make it a preferred choice for businesses seeking dependable power protection solutions.



By successfully completing both phases of the project, Power Control Ltd played a pivotal role in ensuring that UK Dedicated Servers' new site in Coventry is equipped with a robust and reliable power infrastructure. The innovative approach to overcoming challenges and the implementation of cutting-edge UPS solutions demonstrate Power Control’s commitment to delivering tailored, high-quality solutions that meet the evolving needs of their clients. As a result, UK Dedicated Servers can confidently continue their expansion efforts, knowing that their critical infrastructure is safeguarded, and their customers are protected against power interruptions.

For more information about the Legrand modular UPS range please contact 01246 431 431 or to find out more about Power Control’s other backup power products and services, please visit 

“We were thoroughly impressed with Power Control's professionalism and expertise throughout the two-phase N+1 UPS installation in our new data centre site. Their seamless integration of the new Legrand side cabinet, a pioneering addition in the UK, showcased their commitment to innovation and cutting-edge solutions.

Thanks to their meticulous attention to detail, our operations now boast enhanced reliability and efficiency, setting a new standard for data management in the industry."

David Howes - UK Servers, Director

About the product

Legrand KEOR MOD

25kVA - 250kVA


Online double conversion with PWM high frequency technology. Parallelable up to 600kW

The Legrand Keor MOD UPS (uninterruptible power supply) is a three phase system supplying online double conversion with PWM high frequency technology. The award winning modular technology delivers rated power from 25kVA to 250kVA, each unit can be paralleled to identical or different units up to 600kW with the possibility to have N+X redundancy.