3 connecting the dc main cable, Connecting the dc main cable – SMA SSM16-11 User Manual
Page 34
6 Electrical Connection
SMA Solar Technology AG
34
SSM16-24-IA-IEN105120
Installation Guide
5. Insert the DC plug connectors with sealing plugs into the remaining DC inputs on the Sunny
String-Monitor. This way you seal the Sunny String-Monitor.
6.2.4 Connecting the PV Strings to Tyco, MC3, and MC4 Plug
Connectors
1. Remove the sealing plugs from the plugs.
2. Connect the DC plug connectors.
6.3 Connecting the DC Main Cable
Requirement:
☐ The correct terminal cross section for the main DC cable has been chosen.
Terminal Cross Section for Copper Cable
/05*$&
Damage to the electronics due to wrong cable installation.
In order for the Sunny String-Monitor and Sunny Central to work properly, EMC guidelines must be
observed.
• Lay the DC main cable and the data cable separately and at a distance greater than 400 mm
from one another.
Connection
terminal
Number of
cables
Terminal cross section
Round,
single-strand
Round,
multi-strand
Sectoral,
single-strand
Sectoral,
multi-strand
maximum
240 mm
2
1
*
*
Sunny String-Monitor SSM16/24-11 with bottom plate: connection of 1 cable per DC terminal possible.
25 mm
2
…
50 mm
2
25 mm
2
…
240 mm
2
50 mm
2
…
185 mm
2
35 mm
2
…
240 mm
2
2
**
**
Sunny String‑Monitor SSM16/24-11 without bottom plate: connection of 2 cables per DC terminal possible.
25 mm
2
…
50 mm
2
25 mm
2
…
120 mm
2
50 mm
2
…
120 mm
2
35 mm
2
…
120 mm
2
maximum
300 mm
2
1
*
-
150 mm
2
…
300 mm
2
150 mm
2
…
185 mm
2
150 mm
2
…
240 mm
2
70 mm
2
70 mm
2
…
185 mm
2
95 mm
2
…
185 mm
2
95 mm
2
…
185 mm
2