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Installation and Operating Manual for RPI M15A M20A Solar Inverter V1.0 2016-03-18
7 Installation
7.4 Grounding the inverter housing
WARNING
High current
► Always comply with the local regulations
regarding the requirements for the grounding
cable.
► Even if there are no local regulations, the
inverter housing should always be grounded
to increase safety.
► Always ground the inverter housing before
connecting the inverter to the grid and the
solar modules.
1.
Bolt the grounding cable to the inverter. M4 screw, spring
washer, flat washer and serrated washer are already fitted to
the inverter.
1
2
3
4
5
1
Serrated washer
2
Grounding cable with terminal lug
3
Flat washer
4
Spring washer
5
M4 bolt
2.
Perform a continuity test of the grounding connection. If the
connection is not adequately conductive, scrape away the
paint from the inverter housing under the serrated washer to
achieve a better electrical contact.