Eaton 91PS Guía Rápida De Seguridad E Instalación página 7

The recommended ambient operating temperature and humidity for the UPS system is
shown in illustration 3. An ambient temperature from +20 °C to +25 °C is recommended to
achieve a long life of VRLA batteries.
2.3.2.2 UPS system power wiring preparations
Table 3. Minimum recommended multi-core cable and fuse sizes for rectifier and bypass input and
UPS output cables (3 phase input, 3 phase output models)
UPS rating (kW)
Cable [mm ] *
2
Rectifier fuse [A]
Bypass fuse [A]
PE cable [mm 2 ]
Maximum conductor cross section
Tightening torque [Nm]
* Minimum recommended
Table 4. Minimum recommended multi-core cable and fuse sizes for rectifier input, bypass input and
UPS output cables (3 phase input, 1 phase output)
UPS rating (kW)
Rectifier input, cable [mm
Rectifier fuse [A]
Rectifier input, PE cable [mm
Bypass input and UPS output, cable
[mm ] *
2
Bypass fuse [A]
Bypass input and UPS output, PE
cable [mm 2 ]
Maximum conductor cross section
Tightening torque [Nm]
* Minimum recommended
8
4x2.5
16
16
2.5
Solid/stranded wire 16 mm
Stranded wire with ferrule: 10 mm
1.6 Nm (L, N)
10 Nm for 16-35 mm
6 Nm for 4-10 mm
4 Nm for 2.5 mm
8
] *
2 3x2.5
16
2 ]
2.5
10
50
10
Solid/stranded wire 50 mm
Stranded wire with ferrule: 35 mm
3.5 Nm (L, N)
10 Nm for 16-35 mm
6 Nm for 4-10mm
4 Nm for 2.5mm
10
4x4
20
20
4
2
2
2 wire (PE)
2 wire (PE)
2 wire (PE)
10
3x4
20
4
16
63
16
2
2
wire (PE)
2
2 wire (PE)
2 wire (PE)
EN
5