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305 External Battery Installation
B6106000: Connecting External Batteries
The 6K model battery cabinets plug into the back of the UPS
with a three-pin connector, which is attached to a cable on the
battery cabinet.
Install the UPS first. (See Section 304.) Then, place the battery
cabinet(s) close to the UPS so that the battery cable can be
plugged into the “EXTERNAL BATTERY” connector on the
UPS. See Figure 9.
If you have more than one external battery cabinet, place the
second cabinet next to the cabinet connected to the UPS.
Connect the plug on the second cabinet to the receptacle on the
cabinet you have already connected to the UPS. The cabinet
uses the same kind of connector as the UPS. Figure 10 on the
next page shows two battery packs connected to a 6K UPS.
CAUTION
UPS units contain hazardous AC and DC voltages. A qualified service person must install the UPS, AC
mains supply and output cabling service, and external batteries according to local and national codes
and must be familiar with batteries and the required precautions.
The nominal battery voltage for the UPS is 240 VDC. Full voltage and current are always present at the
battery terminals. Keep unauthorized personnel away from batteries. A qualified service person who is
familiar with battery systems and required precautions must service the batteries. A battery can
present a risk of electrical shock and high short circuit current. Batteries may cause severe injury if the
terminals are shorted to ground (earth) or together. Observe these precautions when working on
batteries:
• Remove watches, rings, or other metal objects.
• Use tools with insulated handles
• Wear protective clothing, rubber gloves and boots, and protective eye wear.
• Do not allow tools or metal parts to contact battery terminals.
• Disconnect the charging source prior to connecting or disconnecting battery terminals.
• Determine if the battery is inadvertently grounded. If it is, remove the source of the ground. Contact
with any part of a grounded battery can result in electrical shock. The likelihood of such shock will be
reduced if such grounds are removed during installation and maintenance.
Replace batteries with the same number and type of batteries, and use batteries with the same voltage
and ampere-hour rating as the original batteries.
Dispose of batteries properly. Assume that old batteries are fully charged. Use the same precautions
you would use when handling a new battery. Do not dispose of batteries in a fire — they may explode.
Do not open or mutilate the battery or batteries. Released electrolyte is harmful to the skin and eyes. It
may be toxic. Many areas have regulations for disposing of batteries. Follow all applicable regulations.
6K External Battery Connector
Figure 9
