The following article applies for the models listed below:
UPS Online: Elipse (EL-6K, EL-10K).
The following is a list of several electrical connections available on this UPS.
The INPUT connection should be the same for all type of connections.
Note: The Neutral is not connected on the INPUT of the UPS, therefore the UPS delivers its own NEUTRAL for the OUTPUT using the Isolation Transformer.
The INPUT connection should be the same for all type of connections.
Note: The Neutral is not connected on the INPUT of the UPS, therefore the UPS delivers its own NEUTRAL for the OUTPUT using the Isolation Transformer.
Old Label: New Label:
Single mode or UPS connected by itself
OLD LABEL
For 110/120 Outputs:
For this type of connections you need to make sure to balance your load evenly, 50% on L1-N1 and 50% on L2-N2.
For 220/240V Outputs:
You can take the needed output NEUTRAL from either N1 or L2 which are the jumped together.
Note: Remember to Ground your NEUTRAL on the output of the UPS. See Grounding at the end of the article.
NEW LABEL
For 110/120 Outputs:
For this type of connections you need to make sure to balance your load evenly, 50% on L1-N1 and 50% on N2-L2.
For 220/240V Outputs:
You can take the needed output NEUTRAL from either N1 or N2 which are the jumped together.
Note: Remember to Ground your NEUTRAL on the output of the UPS. See Grounding at the end of the article.
GROUNDING
According to the the NFPA 70 NEC article 250.20(D) specifies that the NEUTRAL should be grounded on all Systems that delivers its own NEUTRAL such as Transformers,generators,UPS with isolating transformers and similar systems.
Following the NFPA article, the output NEUTRAL of the UPS should be connected to the Output GROUND of the UPS. See the image for more information:
Following the NFPA article, the output NEUTRAL of the UPS should be connected to the Output GROUND of the UPS. See the image for more information: