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As a world leader in sub-wavelength reticle solution technology, Photronics operates nine manufacturing facilities across the globe. When power quality issues including power loss, sags and surges started to affect its UK manufacturing plant, the company required a reliable partner focused on service and quality who was not manufacturer biased. This criteria led them to Critical Power Supplies and James Bird, one of the company’s Power Heroes, recommended the Multi Sentry UPS solution for its performance, energy saving features and reliability.


As Photronics UK is a manufacturing site it was important that all the work was planned to co-ordinate with the maintenance schedule. Due to the number of UPS supplied it was vital that the installation schedule was adhered to and close co-operation was required with the site. Critical Power Supplies also supplied a number of three phase UPS from 60kVA to 200kVA and featuring 10-year design life batteries, providing installation and maintenance contracts, including unique bypass switch designs.

Project management was provided as standard on the project and as our unique bypass designs were included, each UPS could be brought online, serviced and maintained without any need to take down the load. With such a large number of UPS solutions onsite, the comprehensive PowerShield UPS management was also supplied and installed as part of the project.


Working closely with the team onsite, and in accordance with the maintenance and installation schedules, the project was successfully delivered on time and on budget. As a result of the work carried out by Critical Power Supplies, the client has seen uptime improved to over 99.99%.