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Connect Offline UPS

APC UPS for Home and Office Forum

Schneider Electric support forum for our APC offers including Home Office UPS, Surge Protectors, UTS, software and services and associated products designed to share knowledge, installation, and configuration.

Solved
razvoj_apc
Cadet
0 Likes
2
122

Connect Offline UPS

This was originally posted on APC forums on 11/19/2013


I have an APC ups and i want it to connect in offline mode and my question is can i connect it like

in the picture?

The N and PE from the AC input and load are on the same "line".

1618_UPS.jpg


Accepted Solutions
Battman_apc
Commander
Commander
0 Likes
0
122

Re: Connect Offline UPS

This was originally posted on APC forums on 11/19/2013


I do not believe you cannot safely do this. By effectively shorting the neutral around the UPS you will defeat a safety cutout relay within the UPS's internals (that exists in most models), not to mention you are also shorting / defeating several filtering components on the UPS input surge/emi/rfi protection that are in series on the neutral.

See Answer In Context

2 Replies 2
razvoj_apc
Cadet
0 Likes
0
122

Connect Offline UPS

This was originally posted on APC forums on 11/19/2013


I have an APC ups and i want it to connect in offline mode and my question is can i connect it like

in the picture?

The N and PE from the AC input and load are on the same "line".

1618_UPS.jpg

Battman_apc
Commander
Commander
0 Likes
0
123

Re: Connect Offline UPS

This was originally posted on APC forums on 11/19/2013


I do not believe you cannot safely do this. By effectively shorting the neutral around the UPS you will defeat a safety cutout relay within the UPS's internals (that exists in most models), not to mention you are also shorting / defeating several filtering components on the UPS input surge/emi/rfi protection that are in series on the neutral.