UPS rating (kW)
8
10
15
20
30
40
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/stranded wire 16
mm
2
, stranded wire with ferrule: 10 mm
2
40 kW frame: solid wire: 70 mm
2
, stranded wire with ferrule:
50 mm
2
* Minimum recommended
CAUTION
Make sure that prospective short-circuit current resulting at the input terminals
of the UPS is equal or less than conditional short-circuit current declared on
the type plate of the UPS.
Table 9: Minimum recommended cable and fuse sizes for external battery bank
UPS rating (kW)
8
10
15
20
30
40
Pos. & neg. line [mm
2
]*
1*16
1*16
1*16
1*16
1*35
1*35
Battery fuse [A]
63
63
63
63
160
160
PE cable [mm
2
]
1*16
1*16
1*16
1*16
1*16
1*16
Maximum conductor cross
section
20 kW frame, 20 kW C-model and 40 kW frame with sepa-
rate battery: solid wire: 25 mm
2
, stranded wire with ferrule:
16 mm
2
40 kW frame with common battery: solid wire: 90 mm
2
,
stranded wire with ferrule: 70 mm
2
* Minimum recommended
Note: UPS power upgrading is possible only if the sizing of the external
cables is sufficient. Alternatively, the external cabling must be upgraded as
well. Fuses are of the type gG.
Cable sizing is based on the standard IEC 60364-5-52 table B.52.2 and IEC
60364-5-54 table B.54.2. Sizing is for 70 ºC rated copper cables.
When connecting external batteries to 93PS UPS, Eaton recommends that you
use the following NZM series molded case circuit breakers:
Type
Article No
Nominal battery
voltage
12V VRLA
Blocks
With 93PS
8–20 kW
NZM1–A63
259083
(P-122000209)
336–432 V
28–36
NZMH2–A63
259097
444–480 V
37–40
Eaton 93PS UPS 8–40 kW
User's and installation guide
©
Eaton Corporation plc 2016. All rights reserved.
Revision: 003
Document ID: P-164000493
40 (104)