Danger and warning!
This device can be installed only by professionals.
The manufacturer shall not be held responsible for any accident caused by the
failure to comply with the instructions in this manual.
Risks of electric shocks, burning, or explosion
This device can be installed and maintained only by qualified people.
Before operating the device, isolate the voltage input and power supply and
short-circuit the secondary windings of all current transformers.
Use appropriate voltage tester to make sure the voltage has been cut-off.
Put all mechanical parts, doors, or covers in their original positions before
energizing the device.
Always supply the device with the correct working voltage during its operation.
Failure to take these preventive measures could cause damage to equipment
or injuries to people.
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