SMC Networks Sunny Mini Central SMC 5000A - Manual (Page 43)

SMA Technologie AG Electrical Connection
Installation Guide SMC50A_60A-IEN073320 Page 43
7 Secure the housing cover by evenly tightening the two middle screws first.
Then tighten the four remaining screws as well and do not forget to also
reattach the washers. The toothing of the washers must face toward the
housing cover. The screws must be tightened with approximately 6 Nm
torque in order to guarantee both the sealing of the housing and the
grounding of the cover.
NOTICE! The grounding of the housing cover is ensured
by the toothed washers. Take care that for all six screws,
the washers are installed with the toothing against the
cover!
Step Instruction