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Electrical Connection SMA Solar Technology AG

16 SB25_30-IEN092520 Installation Guide

5.1.2 Interior View

The following diagram gives a schematic overview of the various components and connection points

inside the Sunny Boy with the lid removed:

Object Description

A Varistors, section 9.1.2

B Display

C LED's for displaying the operating modes

D Plug socket (AC), section 5.2

E Tab for grounding the cable shield with RS485 communication

F PV input plugs (DC), section 5.5

G Electronic Solar Switch (ESS) socket

H Connection area and sockets for communication (RS485, radio), section 5.4

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