Eaton 93PS Safety And Installation Manual page 13

2.2.2.2 UPS system power wiring preparations
Table 3. Minimum recommended multi-core cable and fuse sizes for rectifier and bypass input and
UPS output cables
UPS rating (kW)
Cable [mm2] *
Rectifier fuse [A]
Bypass fuse [A]
PE cable [mm2]
Maximum conductor cross
section
* Minimum recommended
Make sure that prospective short-circuit current resulting at the UPS input terminals is
equal or less than conditional short-circuit current declared on the type plate of the UPS.
Table 4. Minimum recommended cable and fuse sizes for external battery bank
UPS rating (kW)
Pos. & neg. line [mm 2 ] *
Battery fuse [A]
PE cable [mm 2 ]
Maximum conductor cross
section
* Minimum recommended
For information on rated and maximum currents for rated power and voltage, refer to the
Eaton 93PS UPS 8-40 kW User's and Installation Guide.
For the external separate battery option, there are separate terminals for both battery
banks (cabinets). These terminals replace terminals 13 and 14, see illustration 6.2.
NOTE: External overcurrent protection is not provided by this product, but is required by
codes. Refer to Table 3 for wiring requirements. If a lockable output disconnect is required,
it must be supplied by the user.
8 10 15
4*2.5 4*4 4*10
20 20
20 20
1*6 1*6 1*10
20 kW frame and 20 kW C-model: solid wire 16 mm
with ferrule: 10 mm 2
40kW frame: solid wire 70 mm
CAUTION
8 10 15
1*16 1*16 1*16
63 63
1*16 1*16 1*16
20 kW frame, 20 kW C-model and 40 kW frame with separate
battery: solid wire: 25 mm 2 , stranded wire with ferrule: 16 mm
40 kW frame with common battery: solid wire: 90 mm
wire with ferrule: 70 mm 2
20 30
4*10 4*16
32 40 63
32 40 63
1*10 1*16
2 , stranded wire
2 , stranded wire with ferrule: 50 mm
20 30
1*16 1*35
63 63 160
1*16 1*16
2
EN
40
4*25
80
80
1*16
2
40
1*35
160
1*16
2
, stranded
5