SMA SSM-U-1615 - Manual (Page 31)

Assembly of the Connection with Two Terminal Lugs
Position Designation
A Screw M12
B Washer
C Tin-plated copper busbar
D Fender washer
E Spring washer
F Nut M12
G Tin-plated tube terminal lug
Procedure:
1. Ensure that the DC subdistribution is switched off and secured against reconnection (see
Section 8 "Disconnecting and Reconnecting", page 46).
2. Ensure that the inverter is disconnected on the DC side and secured against reconnection (see
inverter manual).
3. Lead the DC main cables into the DC subdistribution through the designated enclosure
opening (see Section 6.1, page 25) with the appropriate seal insert (see Section 12.1, page
62).
4. Fit the DC main cables with tube terminal lugs. Make sure that no pieces of cable are dropped
into the DC subdistribution.
5. In the DC subdistribution, remove the fastening material for the DC main cables from the
busbars.
6. Clean the contact surfaces using a clean cloth and ethanol cleaning agent. Do not touch the
contact surfaces after cleaning.
6 Installation SMA Solar Technology AG
Operating Manual 31 SSMUXX15-BE-en-10