SMA SC 500CP-US - Manual (Page 66)

10 DC Connection SMA America, LLC
66 SCCP-US-IA-US_en-41 Installation Manual
DC– Connection with Terminal Lugs
Figure 36: Illustration of the negative terminal with the DC busbar option for connecting terminal lugs
10.4.2 DC Connection with Positive 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 37: Illustration of the negative 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 negative terminal when the module has a negative grounding.
Position Description
A DC– terminal (negative grounding)
Observe polarity
The polarity of the connection area depends on how the PV modules are grounded.
The following overview displays the negative terminal when the module has a positive grounding.
Position Description
A DC– terminal (positive grounding)