KR series
（
6
-
10kVA
）
user
’s manual
- 2 -
configuration, structure or components will affect the performance of UPS, if the user wants to
make any change please consult with manufacturer or distributor in advance.
Life risk!
Contact high voltage and mains directly or indirectly through humidity objects will cause life
risk.
1.Only authorized professionals are allowed to open the UPS chassis! The UPS input and output voltage is
high risk. Contact the high voltage will bring life risk.
2.Please disconnect the AC power, battery before maintenance.
And test the output terminal block with a voltmeter before maintenance to ensure that the input is turned off
and in safe condition.
3.Even if all external power is disconnected, UPS internal capacitor exists residual electric charge, and
output terminal blocks exists high voltage which may endanger life. So it needs to put the UPS aside long
time
（
≥10 min
）
, the UPS chassis could be opened after charge released.
4.Battery cable has not separated with AC input. Dangerous voltage may exist between battery terminal and
ground terminal. Battery pack exists high voltages which may endanger life, please make sure that they are
insulated when installation or use.
5
．
Easy conductive objects such as watches, bracelets and rings are forbidden during operation.
6.The UPS installation person should have the qualification of high voltage and AC power operation. Power
system maintenance and repair could only be done by professional person.
7.Leakage risk! The UPS must be grounded before electrical connections. The ground terminal must be
connected to the ground.
Unbalanced load, half-wave rectifier load or inductive load are not allowed to
connect to UPS output, such as air conditioner, hair dryer, starter, electric drills, motors,
fluorescent lights, ect.
Drilling holes on the cabinet is prohibited.
Inappropriate drilling will damage the device inside the cabinet. Metal debris generated by
drilling enters the cabinet will lead to PCB short circuit.
