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Eaton 93E Generation 2 UPS 100-200 kVA
(380/400/415V)
The UPS unit is not applicable to the IT (Isolated Terra), TT, or corner
grounded power distribution systems.
Before working on the circuit, isolate the UPS by disconnecting all inputs and
output and check for hazardous voltage between all terminals, including the
protective earth.
When you plan and perform the installation, read and understand the following
notes:
•
Refer to the national and local electrical codes for acceptable external wiring
practices.
•
To allow for future kVA upgrades (software), consider using conductors that
are sized for the full bypass rating of the UPS.
•
For external wiring, use copper cable rated for 90°C. Wire sizes listed in
Table
greater than 40°C, higher temperature wire and/or larger size wire may be
necessary. Wire sizes are based on using the specified breakers.
•
Material and labor for external wiring requirements must be provided by
designated personnel.
•
If installing an external maintenance bypass, all feeds to the UPS including
the rectifier input switch (if installed) must have a service disconnect
independent of the maintenance bypass power path. Most maintenance
bypass solutions provide UPS input feeds derived from but isolated from the
maintenance bypass power path. If the maintenance bypass solution being
installed does not provide such functionality, DO NOT use a single feeder
switch to supply both the UPS and the maintenance bypass.
•
The bypass feed into this equipment uses five wires. The rectifier feed into
this equipment uses five wires. The phases must be symmetrical about
ground (from a Wye/Star source) for proper equipment operation.
•
Parallel UPS input wiring size requirements and output wiring size
requirements from the UPSs to the tie cabinet are the same as those for
single systems.
•
Install a proper three-pole overcurrent disconnect device before connecting
to the UPS, the disconnect device shall disconnect simultaneously all line
conductors of the AC MAINS SUPPLY.
•
The UPS requires an input neutral connection. Ensure that an input neutral
is connected prior to energizing the UPS. If a 4-pole automatic transfer
switch is installed upstream of the UPS, it must work with a break before
making transition with a minimum transfer time of 50 ms.
•
Do not disconnect neutral, neutral required for system operation. If a
disconnect device interrupts the neutral conductor, it shall simultaneously
interrupt all line conductors.
©
Eaton Corporation plc 2019. All rights reserved.
11
are for copper wiring only. If wire is run in an ambient temperature
WARNING
Revision: 002
Document ID: P-164000848
User's and installation guide
42 (118)
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