SMA SMC 4600A Installation - Manual (Page 51)

SMA Solar Technology AG Opening and Closing
Installation Manual SMC46-60A11-IA-en-81 51
7.3 Closing the Inverter
1. Screw the enclosure lid on using the six screws and
the corresponding conical spring washers.
Tighten the screws with 6 Nm torque in the order
shown in the figure on the right. The toothing of the
conical spring washers must be facing the
enclosure lid.
The scope of delivery of the inverter includes a
spare screw and conical spring washer.
2. Check the DC connectors for correct polarity and plug them in.
To release the DC connectors see Section 7.2 "Opening the Inverter" (page 48).
3. Close all the DC inputs that are not needed as described in Section 5.4.4 "Connecting the PV
Array (DC)" (page 31) to seal the inverter.
DANGER!
Danger to life due to enclosure lid carrying voltage
The earthing of the enclosure lid is ensured by the conical spring washers.
• Attach the conical spring washers for all six screws with the toothing facing towards
the enclosure lid.