990-91261B-001

Connect the Power Cables in Single Mains System

NOTICE
Risk of equipment damage
To ensure correct load sharing in bypass operation in a parallel system:
  • All output cables must be the same length for all UPSs.
  • All input cables must be the same length for all UPSs.
Failure to follow these instructions can result in equipment damage.
NOTE: The UPS is preconfigured for TNS earthing system. 3-wire installation using a bonding busbar will result in a higher leakage current.
  1. Only for TN-C/3-wire earthing system: Move the bonding busbar from position (A) to position (B) to connect the N busbar to the PE busbar.

    Rear View of UPS

  2. Connect the power cables as shown:
    1. Connect the PE cables.
    2. Connect the input cables.
    3. Connect the output cables.
    4. For installation with a remote modular battery cabinet: Connect the DC cables to the DC busbars.
    5. For installation with an adjacent modular battery cabinet: See Connect the Power Cables from an Adjacent Modular Battery Cabinet.

    Rear View of UPS – Single Mains System

    CAUTION
    Risk of equipment damage
    Check the fastening of the cable lugs. If the cable lugs move due to pulling on cables, the bolt can become loose.
    Failure to follow these instructions can result in injury or equipment damage.
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