Eaton 93E UPS 15-80 kVA (380/400/415 V) Installation and Operation Manual
© Eaton Corporation plc 2015. All rights reserved. Revision: 001
Document ID: 614-01975-00
39 (133)
WARNING
HIGH TOUCH CURRENT. EARTH CONNECTION ESSENTIAL BEFORE
CONNECTING SUPPLY. As a result of the connected loads high
leakage current is possible. Connection of the earth (ground) is
required for proper product operation. Do not check UPS operation by
removal of the Earth (ground) connection.
The UPS unit is not suitable for IT (Isolated neutral or impedance-
earthed neutral) and corner-earthed power distribution systems.
RISK OF ELECTRIC SHOCK. This UPS receives power from more than
one source. Disconnect the AC and the DC sources to de-energize the
unit before service. After disconnecting the utility power and the DC
power, authorized service personnel must wait at least 5 minutes for
capacitor bleed-off before attempting internal access to the UPS
module.
Backfeed protection is internally fitted in this device.
DANGER
Risk of voltage backfeed!
Before working on this circuit:
• Isolate uninterruptable power systems (UPS).
• Check for hazardous voltage between all terminals including the
protective earth.
• Refer to national and local electrical codes for acceptable external
cabling practices.
• To allow for future kVA upgrades, consider installing a derated UPS
using cabling and external overcurrent protection breakers sized for
a fully rated UPS.
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