Eaton 91PS Guía Rápida De Seguridad E Instalación página 9

91PS UPS rating (kW)
Maximum conductor cross
section, 30 kW frame
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 ratings label of the
UPS.
Table 6. 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
For information on rated and maximum currents for rated power and voltage, refer to the
Eaton 91PS/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), refer to Section 2.4.1.
NOTE: External overcurrent protection is not provided by this product, but is required by
codes. Refer to Table 4 and 5 for wiring requirements. If a lockable output disconnect is
required, it must be supplied by the user.
Table 7. UPS power cable terminal torques
UPS frame
93PS 20 kW
93PS 40 kW
8 10 15
Rectifier: solid wire 70 mm 2
50 mm 2
Bypass/output: solid wire 95 mm
ferrule: 95 mm 2
CAUTION
8 10 15
1*16 1*16 1*16
63 63
1*16 1*16 1*16
15/20 kW frame, C-model and 30/40 kW frame with separate
battery: solid wire: 25 mm 2 , stranded wire with ferrule: 16 mm
30/40 kW frame with common battery: solid wire: 90 mm
wire with ferrule: 70 mm 2
Function
X1, X2, X3: L1, L2, L3, N
X4: battery +/-
PE (ground)
X1, X2, X3: L1, L2, L3, N
X4: battery +/-
PE (ground)
20 30
, stranded wire with ferrule:
2 , stranded wire with
20 30
1*16 1*35
63 63 160
1*16 1*16
Tightening torque Nm
1.6
3
10 Nm for 16-35 mm
6 Nm for 4-10 mm
4 Nm for 2.5 mm
6
6
10 Nm for 16-35 mm
6 Nm for 4-10 mm
4 Nm for 2.5 mm
EN
40
1*35
160
1*16
2
2 , stranded
2 wire
2 wire
2 wire
2 wire
2 wire
2 wire
7