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Maintenance Bypasses

External Maintenance Bypasses can be supplied as wall or rackmounted units or as complete maintenance bypass panels with associated switchgear (for larger three phase UPS installations. A maintenance bypass allows a UPS system to be serviced without disruption to the connected loads. Whilst larger UPS (6kVA and above) tend to have a built-in maintenance bypass, an external maintenance bypass allows the complete UPS system to be isolated for safer on-site working or removal, upgrade and swap-out. The bypass supplies may be filtered to provide additional protection and load isolation. Maintenance bypass panels can also remote alarms (volt-free contact signals) and local AC power sockets. As part of switchgear panels, bypass systems can include Castell interlocks and custom specifications.

Maintenance bypass units are supplied matched to specific UPS brands and manufacturers. Custom bypass panels can be specified and sourced through the Critical Power Supplies engineering team.

For advice, a site survey or quotation – complete our Enquiry Form, call 0845 519 3638 or send us an email. If you cannot find the brand, size or product you are looking for on our website, please let us know.