APC AIS 3000 Installation Manual download pdf (Page 36)

28 AIS® 3000 10-40kVA, 400V, Site Preparation and Installation Manual – 990-2258

Electrical Installation

Total-Power-Off Procedure



Set the DC disconnect switch on the XR Enclosure (if available) to the OFF position.



Remove all batteries from the system, or, alternatively, pull out all batteries to the red

disconnect line shown on the battery. To ensure solid stability, do not pull batteries out beyond

the red disconnect line unless completely removing them from the Enclosure.



Set the mains breaker to the OFF or LOCKED-OUT position. If the UPS has dual mains supply,

set both supplies to the OFF or LOCKED-OUT position.

WARNING!

Risk of electric shock - parts inside the UPS and XR Enclosure are energized from the

battery supply even when the AC power is disconnected. Before electrical installation

begins, follow the Total-Power-Off procedure to completely de-energize the system.

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OFF

XR Enclosure





UPS

Mains

breaker



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APC AIS 3000 Installation Manual Page 36

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