Read and understand the following notes while planning and performing the installation:
•
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
frame rating of the UPS.
•
Material and labor required for external wiring are not part of the UPS delivery.
•
For external wiring, use copper cable rated for 70 °C at minimum. See the appropriate information in
Tables
Recommended multi-core cable and fuse sizes for rectifier input, bypass input and UPS
Minimum recommended multi-core cable and fuse sizes for battery
. 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 could 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.
•
Include a readily accessible disconnect device in all fixed input wiring.
WARNING
Do not disconnect the bypass neutral without disconnecting the bypass phases
at the same time.
Table 8. Recommended multi-core cable and fuse sizes for rectifier input, bypass input and UPS output
connections
UPS standard models
Phase cables [mm
2
]
Rectifier, bypass and
maintenance bypass input
fuse [A]
PE cable [mm
2
]
93PM G2 xxx(200)
240
400
120
93PM G2 xxx(240) 0.9
pF
240
400
120
93PM G2 xxx(300)
2 x 185
630
185
93PM G2 xxx(360) 0.9
pF
2 x 185
630
185
UPS CTO models
Phase cables [mm
2
]
Rectifier, bypass and
maintenance bypass input
fuse [A]
PE cable [mm
2
]
93PM G2 xxx(100)
95
200
50
93PM G2 xxx(120) 0.9
pF
95
200
50
93PM G2 xxx(150)
185
315
95
EATON 93PM G2 UPS
USER’S AND INSTALLATION GUIDE
P-164000956 - February 2021
www.eaton.eu
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