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MR33 Series (75K-600K) Modular UPS
User Manual 1 Safety Description
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1.1.3 Anti-Static Protection
The static generated by human bodies may damage the electrostatic-sensitive components on PCB.
Before touching the sensitive component, please wear anti-static rings and well connect the other end
of the anti-static rings to ground.
1.1.4 Grounding Requirements
High leakage risk! The device must be grounded before electrical connection. The grounding
terminal must be connected to earth.

When installing, connect the grounding wire first; when dismantling, the grounding wire must be
removed at last.

It is prohibited to damage the grounding conductor.

The device must be connected with protection earthing permanently. Before operating, please
check the electric connection and ensure the device has been connected to earth reliably.
1.1.5 Safety Warning Label Setting
To avoid irrelevant person close to or misoperate the UPS, during installation or daily maintenance,
please comply with the related standards.

Set warning labels at the switches of input end and output end to avoid wrongly close and even
cause accident.

Set warning label or safety warning area to avoid irrelevant person entering and cause human
injury or device damage.

After maintenance, ensure that pull out the key of the UPS and save it properly.
1.2 Operation and Maintenance Requirements
There exists high temperature and high voltage inside the UPS. Please comply with the relevant
safety regulations and operation procedures during installation, operation and maintenance to avoid
human injury or device damage. The safety precautions mentioned in the user manual is just as a