Safety
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This manual contains the information concerning the installation and operation of Emerson iTrust Adapt
/20kVA UPS (hereinafter referred to as UPS). Please
carefully read this manual prior to installation.
The UPS must be installed, commissioned and serviced by engineers designated by the manufacturer or its
agent. Failure to observe this could result in personnel safety risk, UPS malfunction and invalidation of warranty.
The UPS has been designed for commercial and industrial use only, and is not recommended for use in life
support applications.
This is a Class A UPS product. In a residential environment, this product may nevertheless cause radio
interference, in which case, the user may be required to take additional measures.
Conformity And Standards
The UPS complies with 2006/95/EC, 93/68/EEC (LV Safety) and 2004/108/EC (EMC), with Australia and New Zealand EMC
Framework (C-Tick) and with the following product standards for UPS:
* IEC62040-1-1: General and safety requirements for use in operator access area
* IEC62040-2: EMC requirements, Class C2 compliant
* IEC62040-3: Performance requirements and test methods
The UPS installation should follow the above instructions and use the accessories specified by manufacturer.
Warning: High Leakage Current
Earth connection is essential before connecting the input power (AC mains and battery included). This equipment must be
earthed in accordance with the local electrical codes.
Earth leakage current ranges from 3.5mA to 1000mA.
Transient and steady-state earth leakage currents, which may occur when starting the equipment, should be taken into
account when selecting instantaneous residual current circuit breaker (RCCB) or residual current detector (RCD).
RCCB must be selected, which is insensitive to DC unidirectional pulses (Class A) and transient current pulses.
Note that the earth leakage current of the load will be carried by RCCB or RCD.
Warning: Reflected Protection
The UPS has a zero-voltage contact closure signal available for use with an external automatic circuit breaker (single
power), to protect against backfeeding voltage to input terminal through the static bypass circuit. If the installation engineer
do not need to use this signal, the external bypass switchgear must be labelled to advise service personnel that the circuit is
connected to a UPS system.
The label can be written: ISOLATE THE UNINTERRUPTIBLE POWER SYSTEM BEFORE WORKING ON THIS CIRCUIT.
Maintainable Components
All equipment internal maintenance and servicing procedures should be carried out only by trained personnel. Removal of
components behind the protective cover requires the use of a tool and is restricted to service personnel.
The UPS meets the safety requirements completely in operator access area. Only the service personnel can contact with the
hazardous voltage inside the UPS. However, the risk of contacting with these voltages is minimized as the components with
hazardous voltage may be contacted only uses a tool to remove the protective cover. No risk will exist if you follow the
general norms and in accordance with the procedures recommended in this manual on equipment operation.
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