MGE UPS Systems EX 11RT Power Supply User Manual


 
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
Appendix5 — 2 86-86000-00 A01