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Myles Gray
Asked: 2013-10-04 06:59:37 +0800 CST

Two APC Symmetra LX 16kVA into one common output?

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We have 2x APC symmetra LX 16kVA units running at the moment and have read (in Eaton's documentation) that their UPSs can have a common synchronised output (based on input phase or set phase with a master/slave clock type arrangement) - http://pqlit.eaton.com/ll_download_bylitcode.asp?doc_id=10925

We would like to connect our two UPS units together as at the moment one is a "cold" manual switch standby unit.

Do APC offer a synchronised phase output for N+1 redundancy between chassis and if so are there any special units required to join the outputs or can a standard tie-cabinet be used?

APC's docs aren't so clear on connecting modular (symmetra) UPSes to a common output. http://www.apcmedia.com/salestools/LARD-8YPBGX/LARD-8YPBGX_R0_EN.pdf

electrical-power

2 Answers

  1. Best Answer

    No.

    I.e. unless noted otherwise, you must assume that the output inverters of your UPS do not support this configuration.

    As it's already been said; best go talk to APC to get all the answers you need.

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  2. Check diagram 2.7 in the link you provided.

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