APC 3000 installation manual Total-Power-Off Procedure, Utility/Mains breaker

Total-Power-Off Procedure

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.

ON



OFF

Utility/Mains

breaker



Serial:

Model:

BATTERY UNIT



UPS XR Enclosure

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 utility/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.

Refer to Seismic Anchoring in the Electrical Installation Manual for instructions on how to remove Seismic Battery Brackets (if applicable).

AIS® 3000 10-30kVA, 208V, Site Preparation and Installation Manual – 990-1957 27