NAUTILUS 10●520
Three phase in/out
Rev.00
– 09 Luglio 2015
16
Altitude
(Mt)
1500
2000
2500
3000
3500
4000
4500
5000
Load
Coefficient
100%
95%
90%
85%
80%
75%
70%
65%
◆
The UPS cooling is depending on fan, so it should be kept in good air ventilation area.
There are many ventilation holes on the front and rear, so they should not be blocked by
any obstacles.
3.6 External Protective Devices
For safety reasons, it is necessary to install external circuit breaker at the AC input supply and the
battery. This chapter provides guidelines for qualified installers that must have the knowledge of local
wiring practices for the equipment to be installed.
◆
External Battery
The UPS and its associated batteries are protected against the effect of over-current through a DC
compatible thermo-magnetic circuit-breaker (or a set of fuses) located close to the battery.
◆
UPS Output
Any external distribution board used for load distribution shall be fitted with protective devices that
may avoid the risk of UPS overloaded.
◆
Overcurrent
Protection device shall be installed at the distribution panel of the incoming main supply. It may identify
the power cables current capacity as well as the overload capacity of the system.
WARNING!
On AC input/output, please select a thermo magnetic circuit-breaker with an IEC 60947-2 trip
curve C (normal) for 125% of the current
.
3.7 Power Cables
◆
The cable design shall comply with the voltages and currents provided in this section, Kindly
follow local wiring practices and take into consideration the environmental conditions
(temperature and physical support media).
WARNING!
BEFORE START-UP THE SYSTEM, PLEASE ENSURE THAT YOU ARE AWARE OF THE
LOCATION AND OPERATION OF THE EXTERNAL ISOLATORS WHICH ARE CONNECTED
TO THE UPS INPUT/BYPASS SUPPLY OF THE MAINS DISTRIBUTION PANEL.CHECK TO
SEE IF THESE SUPPLIES ARE ELECTRICALLY ISOLATED, AND POST ANY NECESSARY
WARNING SIGNS TO PREVENT ANY WRONG OPERATION.
◆
For full scalability purpose, it is economical to install power cables according to the full rating
capacity since the beginning. The diameter of cable is shown below:
FRAME150-300 (MODULES 10/15/20/25/30KVA)
UPS
Cable dimensions (mm
2
)
Input
AC
Output
AC
Input
DC
Grounding
90KVA
4 x 50
4 x 50
3 x 75
50
150KVA
4 x 70
4 x 70
3 x 120
70
300KVA
4 x 150
4 x 150
3 x 120*2
120