Eaton 93PM - Page 42

• Refer to national and local electrical codes for acceptable external wiring
practices.
• To allow for future kVA upgrades (software and/or hardware), consider using
conductors sized for full bypass rating of the UPS.
• Material and labor for external wiring requirements must be provided by
designated personnel.
• For external wiring, use copper cable rated for 70 °C at minimum. See the
appropriate information in Tables
8 and 9 . Cable sizes are based on using
the specified breakers.
• If cables are run in an ambient temperature greater than 30 °C, higher
temperature cable and/or larger size cable may be necessary.
• The bypass feed into this equipment uses three phases or three phases and
neutral. The rectifier feed into this equipment uses three phases or three
phases and neutral. The phases must be symmetrical about ground (from a
Wye source) for proper equipment operation.
• If the load requires a neutral, a bypass source neutral must be provided. If
the load does not require a neutral and there is no neutral conductor
connected at the bypass input, a neutral must be installed to source star
point.
• A readily accessible disconnect device must be incorporated in all fixed input
wiring.
WARNING
Do not disconnect the bypass neutral without disconnecting the bypass
phases at the same time.
Table 8: Minimum recommended multi-core cable and fuse sizes for rectifier input, bypass
input and UPS output connections
UPS rating
[kW]
Phase cables [mm
2
] Rectifier and bypass
input fuse [A]
PE cable [mm
2
]
30 1 x 16 63 1 x 16
40 1 x 25 80 1 x 16
50 1 x 35 100 1 x 25
60 kVA / 54
kW
1 x 35 100 1 x 25
80 1 x 70 160 1 x 35
100 1 x 95 200 1 x 50
120 1 x 120 250 1 x 70
150 1 x 150 315 1 x 95
160 1 x 185 315 1 x 95
200 1 x 240 400 1 x 120
Eaton 93PM UPS 30–200 kVA User's and installation guide
©
Eaton Corporation plc 2017. All rights reserved. Revision: 005 Document ID: P-164000249 42 (126)