Dc Wiring Instructions; Connections To External Battery Cabinet; Electrical Installation - ABB Conceptpower DPA 500 User Manual

480v ul – modular ups, 100kw – 3 mw

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ANOTHER OPTION FOR THE CENTRALIZED VIEW

5.6.3

DC Wiring Instructions

The UPS-cabinet of the Conceptpower DPA 500 does not have internal batteries; therefore the battery will be external either in cabinets

or in shelves/racks.

5.6.4

The DPA 500 UPS uses only externally connected batteries. They may be sealed, maintenance-free lead-acid batteries, flooded lead-

acid cells, or NiCad batteries and are installed and should be connected at the time the UPS is commissioned. The battery charging

system allows adaptation for any of these types of batteries, but must be properly set at installation to the selected battery type. Nominal

battery voltage of 540 volts must be used (refer to Section 11.4 for additional details). Overcurrent protection shall be external to the unit

and supplied by others. The overcurrent protective device should be sized as recommended by the battery system supplier. Wiring shall

be based on overcurrent protective device requirements and recommendations. At a minimum, refer to NEC Section 210-20 (A), Table

310-16 for Allowable Ampacities of Insulated Conductors.

Wire sizing according to

NEC Section 210-20 (A) Table 310-16

Use 167°F (75°C)(minimum) copper or aluminum wire

WARNING

Refer to Section 2.5.2 for wiring connection means

The battery back-up should be sized according to the desired backup time. Note that the backup time is longer if the load is less than the

nominal power rating of the UPS system(s).

If installing a customer-supplied battery system, install the battery system according to the battery and battery system manufacturer's

instructions and all applicable codes and regulations, including the NEC, Article 480.

5.7

KEEP OUT OF BATTERY POLES WHICH CONTAIN DANGEROUS DC-VOLTAGES CAUSING FATAL

ACCIDENTS.

DO NOT OPERATE IN CASE OF PRESENCE OF WATER OR MOISTURE. BY OPENING OR REMOVING

DANGER

THE UPS-COVERS YOU RUN RISK OF EXPOSURE TO DANGEROUS VOLTAGES!

SERVICE OF BATTERY SYSTEM SHOULD ONLY BE DONE BY TRAINED SERVICE AND

MAINTENANCE PERSONEL OF THE MANUFACTURER OR AUTHORIZED SERVICE PARTNERS.

Conceptpower DPA 500 480V UL │94-12-043275 A02 21

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