1. Before moving or rewiring the UPS, disconnect mains input power and the battery
and make sure that the UPS is completely shut down. Otherwise, the output terminal
may carry live voltage, presenting an electric shock hazard
2. Liquid or other irrelevant external objects are prohibited inside the UPS.
3. In case of a fire, a dry chemical fire extinguisher is essential. Using a foam fire
extinguisher will cause electric shock.
4. The output neutral line of the UPS is from the input, after the neutral line is
suspended by the upstream protection devices, the output neutral line will be
unconnected.
5. To prevent the radio frequency of output cables from disturbing other electric
equipment, it is recommended to use the UPS output cable with the length less than
10m.
High leakage current
1. Earth connection is essential before connecting the input power (AC mains and
battery included).
2. Earth leakage current ranges from 3.5mA to 100mA.
3. 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).
4. Note that the earth leakage current of the load will be carried by RCCB or RCD.
5. This equipment must be earthed in accordance with the local electrical codes.
1. When selecting the UPS system upstream distribution protection equipment,
ensure that it complies with the local electric regulations.
2. The specified upstream breakers are required to obtain the conditional
short-circuit current rating, Icc at 10kA symmetrical rms. The specified upstream
breakers should comply with an IEC 60947 series standard.
User serviceable components
1. The UPS contains no user-serviceable parts. Do not remove the cover. Removing
the cover may result in electric shock and will invalidate any implied warranty.
2. The UPS meets the safety requirements completely in operator access area. Only
service personnel can contact with the hazardous voltage inside the UPS. However,
the risk of contacting these voltages is minimized because the components with
hazardous voltage may be contacted only by using 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.
VI
