Safety Precaution
This manual covers the installation and use of Emerson NXr UPS.
Please read this manual before installation.
The NXr UPS must be commissioned and maintained by the engineers designated by the manufacturer or its
agent. Failure to observe this could result in personnel safety risk, equipment malfunction and invalidation of
warranty.
The NXr UPS is only used for commercial or industrial purpose and cannot be used as life support equipment.
This is a C2 type UPS product. In a domestic environment, this product may cause radio frequency interference,
in which case, the user may be required to take additional measures.
Conformity and standards
This product complies with CE 2006/95/EC (low voltage safety) and 2004/108/EC (EMC), EMC standards of Australia and
New Zealand (C-Tick), and the following UPS product standards:
* IEC62040-1-1-General and safety requirements for use in operator access area
* IEC/EN62040-2 EMC requirements CLASS C2
* IEC62040-3 Performance requirements and test methods
For more details, refer to
Chapter 8 Product Specifications
.
Continued compliance requires installation in accordance with these instructions and the use of manufacturer approved
accessories only.
Warning: high earth leakage current
Earth connection is critical before connecting the input supply (including both mains supply and battery).
Earth leakage current exceeds 3.5mA and is less than 1000 mA.
Transient and steady state earth leakage currents, which may occur when the equipment is started, should be taken into
account in the selection of instantaneous residual current circuit breakers (RCCBs or residual current detector (RCD
devices.
Note also that the earth leakage currents of the load will be carried by the RCCBs or RCDs.
The equipment must be earthed in accordance with the local electrical authority codes of practices.
Warning: backfeeding protection
This UPS is fitted with a voltage-free contact closure signal for use with an external automatic disconnect device (supplied
by others), to protect against backfeeding voltage into the incoming termninal through the static bypass circuit. If this signal
is not used by the installer, a label must be added at the external incoming bypass supply disconnect device to warn service
personnel that the circuit is connected to a UPS.
The text has the following meaning or is equivalent to: Isolate the UPS before working on this circuit.
User serviceable components
All the equipment maintenance and servicing procedures involving internal access need special tools and should be carried
out only by trained personnel. The components that can only be accessed by opening the protective cover with tools cannot
be maintained by the user.
This UPS fully complies with the general and safety requirements for use in operator access area. Dangerous voltages are
present within the UPS and battery enclosure but out of reach of non-service personnel. Contact of these voltages is
minimized, because live parts are housed behind protective covers that require a tool for their removal. No risk exists if you
operate the equipment in the normal manner, following the recommended operating procedures in this manual.
Summary of Contents for Liebert NXr
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