SMA SC 500HE-US Maintenance Manual - Manual (Page 33)

SMA America, LLC 4 Maintenance
Maintenance Manual SC500HEUS-eng-WH-IUS120411 33
Figure 9: Position of screw connections with cage clamp option
1. Disassemble the protective covers.
Position Designation
A For negative grounding: DC −
For positive grounding: DC+
B For positive grounding: DC −
For negative grounding: DC+
C AC connection
D Protective conductor