KR-RM Series(1～3kVA) UPS
User Manual
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3. Even if all external power are disconnected, there still exists residual electricity inside UPS, and
the output terminal bar may exist high voltage which may cause human injury. It is necessary to
put UPS aside for enough time(≥10min) to release charge completely, then open the UPS
chassis.
4. If the battery wires are not isolated with AC input, there may exist dangerous voltage between
battery terminal and ground terminal. The batteries exist high voltage, which may cause human
injury, pay attention to insulation when installing and using them.
5. During operation, take off conductive objects, such as watch, bracelet, ring, etc.
6. Personnel installing UPS should have the qualification of high voltage and AC power operation.
Power system only can be maintained and repaired by professionals.
7. Danger of electric leakage! UPS should be grounded prior to doing electrical connection. The
ground terminal must be connected with the ground.
Do not connect with the unbalance load, half-wave rectification load or inductive
load.
Do not connect with unbalance load, half-wave rectification load or inductive load in the output of
UPS, such as air-condition, blower, starter, electric drill, motor, daylight lamp, etc.
Drilling holes on the cabinet is prohibited!
Inappropriate drilling will damage components inside the cabinet. If metal debris generated by
drilling drops into the cabinet, circuit board may be short-circuit.
It is dangerous to operate during lightning storm!
During a lightning storm, it is prohibited to perform high voltage and AC power, as well as in the
tower or the mast. The atmosphere will generate a strong electromagnetic field. Therefore, in order to
avoid equipment struck by lightning, it is necessary to do the lightning protection and grounding in
time.
