SMA SC 500HE-20 Maintenance Manua - Manual (Page 53)

SMA Solar Technology AG 7 Maintaining the Accessories
Maintenance Manual SC500-800HE20-WH-en-10 53
7.3.6 Checking the String Cables
2. Check if the DC connectors are securely in place.
If the DC connectors are loose, reconnect the string cables to the SUNCLIX DC connector
(see SMA String-Combiner installation manual).
Replace the DC connectors if they do not snap in correctly.
3. Ensure that the screw terminals are securely attached to the fuse holders.
If the screw terminals are detached from the fuse holders, reconnect the string cables to the fuse
holders (see the SMA String-Combiner installation manual).
7.3.7 Checking the Covers and Labels
Figure 18: Position of the labels on the SMA String-Combiner
1. %"/(&3
Danger to life from electric shock or electric arc when touching live components.
• Disconnect the SMA String-Combiner (see Section 7.3.1).
Item Description
A Dangerous voltage symbol
B Risk of electric shock from fuse holder
C Risk of electric shock under the cover
D Risk of an electric arc
E Danger of burn injury
F PV array earthing
G Fuse rating
A A A B C A B A A
D E F G F E D