990-5783J-001

Connect the Power Cables in a 480 V System

The grounding electrode conductor must be installed per NEC 250.30 and sized per NEC 250.66.

  1. Connect the equipment grounding conductor/PE to the PE busbar.
  2. Only applicable to dual mains systems: Connect the bypass cables.
  3. Connect the output cables.
  4. Connect the input cables.
  5. For high impedance grounding systems only:
    NOTE: For high impedance grounding systems, the installation must include a ground-fault detection circuitry.
    1. Rotate the jumper busbar so it does not create a connection.
    2. Connect an external impedance between the “E” terminal and the equipment grounding conductor according to NEC 2014 article 250.36.
  6. Connect the battery cables to the battery + and battery – terminals.
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