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11 Maintenance
Installation and Operation Manual for Inverter RPI M50A_12s V1 EU EN 2017-03-09
146
11.5 Replacing the surge protection devices
DANGER
Electrical shock
Potentially lethal voltage is still present on the in-
ner electrical components of the inverter after the
AC/DC disconnector has been opened.
1. Turn the AC/DC disconnector to the
OFF
position.
2. Disconnect the inverter from all AC and DC
voltage sources and make sure that none
of the connections can be accidentally
restored.
3. Wait for at least 10 seconds until the internal
capacitors have discharged.
∫
The surge protection devices are replaced as
a block. You can obtain spare parts from Delta
Customer Service. The contact information is
provided on the last page of this document
∫
You should use a magnetic screwdriver to pre-
vent the screws from falling into the inverter.
1. Turn the AC/DC disconnector to the
OFF
position.
2. Unscrew and unplug the AC plug.