Technical data

UPS Unit Rating 250 300 400 500 600 800
12.5 Reserve static switch
Nominal voltage (V) 400 (380/415 selectable) 3Ph + n
Nominal frequency (Hz) 50/60 (selectable)
Frequency range (%) ±0.75 (1.5, 2.5, 6.0 selectable)
Voltage range (%) ±10
Maximum operating voltage (V) 480/277
Maximum overload capacity For 10 minutes (%) 125
For 1 minute (%) 150
For 600 milliseconds (%) 700
For 100 milliseconds (%) 1000
SCR I
2
t @ T
vj
=130°C; 8.3-10ms (A
2
s) 320k 320k 1125k 1125k 1125k 4500k
I
TSM
@ T
vj
=130°C; 10ms (A) 8k 8k 15k 15k 15k 30k
Fuse Rating (Vac/A) 660/500 660/500 660/1000 660/1000 660/1000 660/1600
Pre-arching I
2
t (A
2
s) 23.8k 23.8k 142k 142k 142k 308k
I
2
t @ 400Vac (A
2
s) 105k 105k 630k 630k 630k 1332k
Transfer time when in synchro
(double conversion): Inverter to reserve (ms) <0.5
Reserve to inverter (ms) <0.5
Transfer time without synchro (ms) <20
Retransfer delay (sec) 5
12.6 System data
Maximum input power @400V, Recharge Mode (kVA) 356 421 562 702 842 1123
Heat dissipation: PFC Mode (kW) 17.4 19.5 25.9 32.4 n.a.
Float Mode (kW) 41.7 55.7
Rapid recharge (kW) 18.7 21.1 27.9 34.9 45.6 60.8
Digital interactive (kW) 6.2 7.4 10 12.4 14.8 19.8
AC/AC efficiency
(2)
: Half load double conv. (%) 91.5 92.0 92.0 92.0 91.2 91.2
Full load double conv. (%) 92.0 92.5 92.5 92.5 92.0 92.0
Digital Interactive (%) 97.0
Noise @ 1 metre as per ISO 3746 (dBA ± 2dBA) 68 68 70 72 75 75
Protection degree with open doors IP20
Mechanical dimensions: Height (mm) 1780 1780 1780 1780 1780 1980
Width (mm) 1620 1620 1620 2020 3860 3860
Depth (mm)
(4)
858 858 858 858 1058 1058
No. of cabinets 111133
Colour Frame (RAL scale) 7035
Bottom panel (RAL scale) 7035
Weight (kg) 1880 1880 2080 2580 3960 4820
Floor area (m
2
)1.35 1.35 1.35 1.68 3.98 3.98
Floor loading (kg/m
2
)1390 1390 1540 1535 1000 1210
Cable entry Bottom/Side
Access Front
Cooling Forced Ventilation
23
12 Technical data (250 to 800 kVA)
MASTERGUARD Series SIII
UPS Systems from 60 to 800 kVA
MKA4CAT0UKSIII/Rev. 11-11/2004/UK
Tecnico-SIII-MG 10-11-2004 8:22 Pagina 23