TECHNICAL DATA
UPS Models
MST 60
MST 80
INPUT STAGE
Nominal Voltage
380-400-415 V AC Three-phase with neutral (4 wire)
Nominal Frequency
50-60Hz
Maximum input current
(1)
96A
125A
Maximum battery current
150A
200A
Input voltage tolerance accepted for no
battery intervention (referred to 400V AC)
20% @ 100% load
-40% +20% @50% load
Input frequency tolerance accepted for no
battery intervention (referred to 50/60Hz)
20%
40-72Hz
Input current Harmonic Distortion
THDi
3 %
(2)
Input power factor
0.99
Power Walk In mode
Programmable from 5 to 125 sec. at steps of 1 sec
OUTPUT STAGE
Nominal Voltage
(3)
380/400/415 V AC three-phase with neutral (4 wire)
Nominal Frequency
(4)
50/60Hz
Output nominal current
87A
116A
Nominal apparent power in output
60kVA
80kVA
Nominal active power in output
54kW
72kW
Output power factor
0.9
Short-circuit current
1.5 x In for t
500ms
Output voltage precision (referred to output
voltage 400V AC)
1%
Static stability
(5)
0.5%
Dynamic stability
3% resistive load
(6)
Output voltage harmonic distortion with linear
load and normalized distortion
1% with linear load
3% with distorted load
Crest factor accepted at nominal load
3:1
Frequency accuracy in free running mode
0.01%
Inverter overload (Vin>345V AC )
Load
≤
103%
→
Infinite
Load = 110%
→
10 min
Load = 125%
→
1 min
Load = 150%
→
5 sec
Bypass Overload
Load
≤
110%
→
Infinite
Load = 125%
→
60 minutes
Load = 150%
→
10 minutes
Load >150%
→
2 sec
BATTERY CHARGE STAGE
Nominal voltage
240Vdc
Maximum recharging current
(7)
10A (20A optional)
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