Connect the Power Cables in Dual Mains System
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Risk of equipment damage
To ensure correct load sharing in bypass operation in
a parallel system:
Failure to follow these instructions can result in equipment damage.
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NOTE: The UPS is preconfigured
for TNS earthing system. 3-wire installation using a bonding busbar
will result in a higher leakage current.
- 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 G/PE busbar.
Rear View of UPS
- Remove the three single mains jumper busbars.
Rear View of UPS – Dual Mains System
- Connect the power cables as shown:
- Connect the equipment grounding conductor/PE cables.
- Connect the input cables.
- Connect the bypass cables.
- Connect the output cables.
- For installation with a remote modular battery cabinet: Connect the DC cables to the DC busbars.
- For installation with an adjacent modular battery cabinet: See Connect the Power Cables from an Adjacent Modular Battery Cabinet.
Rear View of UPS – Dual Mains System
CAUTIONRisk of equipment damageCheck 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.