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UPS Manual Bypass

Dave mcn

Hi everyone

I have a customer that wants a manual bypass for their UPS

Currently there is nothing, the feed goes straight through the UPS and to a sprinkler pump via a control panel.

They have confirmed that they just want it for manually switching over to mains supply if the UPS fails.

The circuit isn't critical and can be interrupted to switch over to mains.

Their budget is tight as they are a charity.

I am thinking of just using a 3 position changeover switch. 

https://www.cef.co.uk/catalogue/products/1780467

Any thoughts please?

  • 0 in reply to Simon Barker

    This is a critical clarification...

    If it's irrigation, why the UPS?
    If it's fire suppression:  UPS may be unnecessary depending on the category of the system.

    Either way, I'd steer clear of 3-position switch. Isolation from supplies should probably be via lockable isolators.

    If it is for fire suppression, are all your cables fire rated?

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