MGE UPS Systems EX 7RT - Manual (Page 60)

Table 5-3: Battery Recharge time to recover 90% of the rated backup time after discharge at full load.
Configuration for Configuration for Configuration for
2 hours backup time 4 hours backup time 8 hours backup time
EX 5 7 hours 15 hours 24 hours
EX 7 5 hours 12 hours 20 hours
EX 11 7 hours 15 hours 24 hours
5.4 System Short Circuit Protection
Short circuit current provided by EX 5/7/11RT in normal or battery mode:
EX5/7 RT 110A for 80ms
EX11 RT 190A for 80ms
5.5 Accessories Electrical Characteristics
EX RT Transformer
Nominal power 11 kVA
Nominal current 63 A
Input voltage 208-240Vac
Output Voltage 120/208/240Vac
Frequency 50/60 Hz (+/-10%)
Isolation (EN 61558-1-2-4) 3.75 kV / 5 M ohms
Operating temperature From 0° to +40°C
Max. operating rel. humidity 95%
Derating / altitude Pn-10% > 1000 m
Dimensions HxWxD (tower) 17.5 x 5.15 x 25 inches (444 x 131 x 635 mm)
Dimensions HxWxD (rack 3U) 5.15 x 17.5 x 25 inches (131 x 444 x 635 mm)
Weight 151 lbs. (68.5 kg)
EX RT CLA module
AC input voltage 156-280 Volts AC
Input frequency 40-70 Hz
Battery charge current 6 A DC
5.6 Heat Rejection
Table 5-4: Full load heat rejection in BTU’s/hr.
System Operation Mode
On-line On Battery
5kVA 1327 1944
7kVA 1858 2722
11kVA 2919 4278
5.7 Environmental Characteristics
◗
The operating temperature is 0 to 40°C (8 hours at 45°C), however optimum operation is within the +20 to +25°C
range and at 5-95% humidity, non-condensing at altitude up to 3280ft without de-rating.
◗ The storage temperature : -20 to 40°C. Humidity : 5-95%, non condensing.
◗
Battery backup time is adversely affected by high and low temperatures. It is significantly reduced at tempera-
tures 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 air vent grills and exits through the back. Always keep air vent grills unobstructed.
EX 5/7/11 RT System
Appendix 5 — 2 86-86000-00 A01