Sungrow AC011E-01, User Manual, Page: 17 / 44

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2.4 Electrical Connection
2.4.1 Circuit Diagram
figure 2-1 Circuit diagram
table 2-3 Label Descriptions
Label Description
A The LED lights that indicates the status of the charger
B RS485, reserved for external communication
C ESP32 module for Wi-Fi communication
D CT for leakage current detection
E Charging cable output (connected to the vehicle)
F CCU internal relay
G Type A residual-current device (Parameter: 25 A/400 V with a rated residual
current of 30 mA; input cable cross-section: 2.5 mm 2 )
H The charger
The charger already integrates a DC residual-current device (RCD) with a rated re-
sidual current of 6 mA. However, the charger also requires a type A RCD of 30 mA
to operate. Each charger in the system must be individually connected to the utility
grid through an RCD and a miniature circuit breaker.
2.4.2 AC Cable Connection
AC Cable Requirement
Cable cross-section: 5 × 2.5 mm 2
step 1 Place the charger face-down on a clean and flat surface.
step 2 Loosen the screws that secure the back cover plate. (M3 screws, torque: 0.5 ± 0.1 N·m)
User Manual 2 Installation