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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