LEGRAND KEOR COMPACT Installation And User Manual page 29

4.3.7 Output cables installation
The installation must be done according to the following steps:
- check that the nominal power of the UPS is at least the same of the nominal power of the load;
- check that the cables to connect to the UPS are isolated upstream and no voltage is present;
- check that the earthing cable from the low voltage switchgear is properly connected (see paragraph
4.3.2);
- connect the neutral cable of the output line to the X50 – 3N terminal;
- connect the cables L1, L2, L3 of the output line to the terminals X50 – 3L1, X50 – 3L2, X50 – 3L3,
being careful to observe the phase sequence (L1, L2, L3).
INDICATION
Provide a separate switchgear for the load. The following information must be indicated on the system
switchgear by means of stickers or similar:
- maximum nominal power of the total load;
- maximum nominal power of the load at the load outlets;
- if a common switchgear is used (mains and UPS power outlets), make sure that there is an indication
of the power source on every power outlet ("Mains" or "UPS").
WARNING
The neutral output cable must always be connected.
4.3.8 Battery cables installation for external battery cabinets
If there are external battery cabinets, follow the instructions in the installation manual of the external
battery cabinets and perform the installation according to the following steps:
- Make sure all battery breakers are open;
- check that the cables for connecting the UPS are insulated upstream and that there is no voltage;
- check that the grounding cable of the low voltage cabinet is correctly connected (see paragraph
4.2.3);
- connect the positive cables of the battery cabinets to terminal X20 - B+ ;
- connect the negative cables of the battery cabinets to terminal X20 - B-;
- connect the neutral cables of the battery cabinets to terminal X20 - B_N.
KEOR COMPACT
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