Battery Cabinets - Liebert 7200 Series User Manual

Chapter 4 - Optional equipment

Battery cabinets

4.5 Battery cabinets
Only qualified personnel should install or service batteries.
A battery can present a risk of electric shock or burns from high short circuit currents.
Eye protection should be worn to prevent injury from accidental electrical arcs.
Remove rings, watches and all metal objects.
Only use tools with insulated handles.
Wear rubber gloves.
If a battery leaks electrolyte, or is otherwise physically damaged, it should be replaced and stored in a container
resistant to sulphuric acid and disposed of in accordance with local regulations.
If electrolyte comes into contact with the skin the affected area should be washed immediately.
Batteries MUST be disposed of in accordance with local environmental laws.
Three types of cabinets are available for 38 Ah, 50 Ah and 85 Ah batteries. The cabinets have the same
height, width and design as the UPS and can be installed on either side of the UPS.
The cabinets are equipped with an automatic circuit-breaker, with magnetic overcurrent protection and
undervoltage tripping, controlled from a special board (part no. 4520067T) mounted inside the battery
cabinet.
This circuit-breaker has the following features:
• cabinet insulated for safety
• short-circuit protection
• circuit-breaker automatic opening when the Inverter is locked out due to battery undervoltage, thus
avoiding damaging discharges to the battery
• circuit-breaker remote breaking action using the emergency stop button, if installed
• protection against operating errors ( closing the circuit-breaker with the rectifier disabled )
• protection against battery cabinet and UPS connection errors ( polarity reversal +/- )
The cabinets have the following part numbers:
• part no. 5320031 P for 12V/38 Ah batteries with 100 A circuit-breaker
• part no. 5320032 Q for 12V/50 Ah batteries with 100 A circuit-breaker
• part no. 5320038 W for 12V/85 Ah batteries with 160 A circuit-breaker
The cabinets can be supplied with batteries already installed or empty.
Cabinets with batteries already installed.
These cabinets are shipped with open connections between the shelves. Since it may be necessary to
remove the rear panel, these connections must be made prior to positioning. These are indicated in
figures 4-7, 4-9, 4-11 and 4-12.
Note The continuous voltage value, and therefore the number of battery blocks, depends on the value of
the mains input and output voltages (see Electrical data - Chapter 8). Figures 4-7, 4-9, 4-11 and
4-12 indicate the maximum equipment layout (34 single 12 V blocks for 415V input/output
voltage); they also indicate the single blocks positions which are not installed for mains voltage
of 400V (33 single blocks ) or 380V (32 single blocks).
Page 4-8
Issue 6
(03/98)
document in response to "powersure ups"
WARNING
7200 Series UPS User Manual
Single Module and 1+1 Parallel System