PV Powered 2500 Guía de instalación descargar pdf (Pagina 23)

SMA Solar Technology AG Electrical Connection

Installation Guide SB25_30-IEN092520 23

5.5 Connecting the PV Generator (DC)

• Requirements for the modules of the connected strings:

– same type

– same number

– identical alignment

– identical tilt

• The connecting wires of the PV modules must be equipped with plug connectors in order that

they can be connected to the DC input sockets of the Sunny Boy.

A pre-assembled set for connecting the free cable ends of a string is available as optional

accessory from SMA Solar Technology (see section 12 "Accessories" (page46)).

• The following limit values at the DC input of the Sunny Boy may not be exceeded:

Use of Adaptors

Adaptors (branch connectors) are not to be visible or freely accessible in the immediate

surrounding of the Sunny Boy.

• The DC current flow may not be interrupted via adaptors.

• Always disconnect the current flow first via the Electronic Solar Switch.

Sunny Boy Maximum input voltage Maximum input current

SB 2500 600 V (DC) 12.5 A (DC)

SB 3000 600 V (DC) 15 A (DC)

DANGER!

Risk of lethal electric shock or fire!

The maximum possible input current per string is limited by the plug connectors used. If the

plug connector is overloaded, an electric arc may occur and there is a fire risk.

• Ensure that the input current for each string does not exceed the maximum flow

current of the plug connectors used.

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PV Powered 2500 Guía de instalación Pagina 23