Pv Modules: Connecting Dc - SMA SUNNY CENTRAL STRING-MONITOR US Technical Description

Electrical Connection
7.4.2 PV modules: Connecting DC–
The DC– cables of the PV modules are connected at the
fuse holders (A) in the Sunny Central String-Monitor.
Use 90 °C (194 °F) copper wire for all DC wiring
connections to the fuse holders.
1. Open the fuses with a screwdriver
counterclockwise.
1. Strip the cable by approx. 0.47 in. (12 mm).
2. Plug the copper inner conductor of the cable into
the fuse holder.
3. Tighten the fuse holder with a screwdriver. The
required torque is 19 in-lb.
Rigid wire: 10 - 6 AWG
Multistrand wire: 10 - 8 AWG
4. Connect all DC– cables of the modules as described above.
☑ The DC– cables of the PV modules are connected.
DANGER
Risk of electric shock when working on the Sunny Central String-Monitor with fuses closed.
Death or serious injuries.
• DO NOT close the fuse holders.
• Do not close the fuse-holder until the PV system is put into operation.
46 SSMUS-TUS094511
Wire size
SMA Solar Technology AG
0.47 in.
Torque
19 in-lb (2.2 Nm)
Technical Description
A