MGE UPS Systems Comet EX 11 RT 3:1 - Manual (Page 38)

Page 38 - 34007724EN/AA
5. Appendices
5.2 Glossary
Backup time Time that the connected loads can operate on battery power.
Bypass AC source Source supplying the bypass line. The load can be transferred to the bypass line if an overload
occurs on the UPS output, for maintenance or in the event of a malfunction.
ECO mode Operating mode by which the load is supplied directly by the AC source if it is within the
tolerances defined by the user. This mode reduces the consumption of electrical power.
Load Devices or systems connected to the UPS output.
Manual bypass Rotary switch controlled by the user, used to connect the loads directly to the AC source.
Transfer of the load to the manual bypass enables UPS maintenance without interrupting the
supply of power to the connected loads.
Normal (double conversion) mode
The normal UPS operating mode in which the AC source supplies the UPS which in turn
supplies the connected loads (after electronic double conversion).
Normal AC source Normal source of power for the UPS.
Relay contacts Contacts supplying information to the user in the form of signals.
UPS Uninterruptible Power Supply.
◗ The operating temperature is 0 to 40°C (8 hours at 45°C), however optimum operation is within the +20 to +25°C range.
◗ Battery backup time is adversely affected by high and low temperatures. It is significantly reduced at temperatures under
10°C. Above 25°C, battery service life is cut in half every 10°C. Above 40°C, battery manufacturers no longer guarantee
operation due to the risk of thermal runaway.
◗ Air enters through the front and exits through the back.
Thermal characteristics
Comet EX RT CLA module
◗ AC input voltage: 160-280 Volts AC,
◗ Input frequency: 40-70 Hz,
◗ Battery charge current: 6 A DC,
◗ Recharge time to recover 90% of the rated backup time after discharge at full load:
Comet EX 5 RT
Comet EX 7 RT
Comet EX 11 RT
Configuration for
2 hours backup time
5 hours
5 hours
7 hours
Configuration for
4 hours backup time
12 hours
12 hours
15 hours
Configuration for
8 hours backup time
20 hours
20 hours
24 hours