Table 3. UPS cabinet minimum clearances
15/20 kW frame
(Illustration 1,
30/40 kW frame
(Illustration 1,
From the top of the cabinet 500 mm 500 mm
From the front of the cabinet
500 mm 650 mm
From the back of the cabinet
150 mm 250 mm
From the side of the cabinet 0 mm 0 mm
The recommended ambient operating temperature and humidity for the UPS system is
shown in illustrations 4.1 and 4.2. An ambient temperature from +20 °C to +25 °C is
recommended to achieve a long life of VRLA batteries.
Table 4. Minimum recommended multi-core cable and fuse sizes for rectifier and bypass input and
UPS output cables (3-phase input, 3-phase output models)
93PS UPS rating (kW) 8 10 15 20 30 40
Cable [mm
2
] 4*2.5 4*4 4*10 4*10 4*16 4*25
20 20 32 40 63 80
Bypass fuse [A] 20 20 32 40 63 80
PE cable [mm
2
] 1*6 1*6 1*10 1*10 1*16 1*16
Maximum conductor cross
section
20 kW frame and 20 kW C-model: solid wire 16 mm
2
, stranded wire
with ferrule: 10 mm
40kW frame: solid wire 70 mm
2
, stranded wire with ferrule: 50 mm
2
Table 5. Minimum recommended multi-core cable and fuse sizes for rectifier and bypass input and
UPS output cables (3-phase input, 1-phase output models)
91PS UPS rating (kW) 8 10 15 20 30
2,5 4 10 10 16
Rectifier fuse [A] 20 20 32 40 63
Bypass, output cable
[mm
2
]
10 16 25 35 70
50 63 80 100 160
PE cable [mm
2
] 10 16 16 16 35
Maximum conductor cross
section, 15 kW frame and
15 kW C-model
Rectifier: solid wire 16 mm
2
, stranded wire with ferrule:
10 mm
2
Bypass/output: solid wire 70 mm
2
, stranded wire with