SMA SC 500CP-US - Manual (Page 67)

SMA America, LLC 10 DC Connection
Installation Manual SCCP-US-IA-US_en-41 67
DC+ Connection with Terminal Lugs
Figure 38: Illustration of the positive terminal with the DC busbar option for connecting terminal lugs
10.4.3 DC Connection without Grounding
The DC cables previously fitted with terminal lugs are connected directly to the copper bus bars. You can connect a
maximum of two terminal lugs per DC input.
DC+ Connection with Terminal Lugs
Figure 39: Illustration of the positive terminal with the DC busbar option for connecting terminal lugs
Observe polarity
The polarity of the connection area depends on how the PV modules are grounded.
The following overview displays the positive terminal when the module has a positive grounding.
Position Description
A DC+ terminal (positive grounding)
Observe polarity
The polarity of the connection area depends on how the PV modules are grounded.
The following overview displays the positive terminal when the module has no grounding.
Position Description
A DC+ terminal (without grounding)