Preparing The Ac Connection - Bosch BPT-S 3 Manuel De Service

62 | Installation
NOTICE
Bosch BPT-S 3 / 3.68 / 4 / 4.6 | Operating manual
5.3: Connected earthing set
■
PE earthing set is connected
5.1.2

Preparing the AC connection

The single-phase Bosch BPT-S series string inverters
are designed to be connected to a single-phase or
three-phase power grid.
Each Bosch BPT-S series string inverter is therefore
equipped with a three-pin AC plug for connection to
the grid.
When installing several string inverters on a 3-phase
grid, they can be distributed to different phases in
order to load the feed-in phases evenly.
See figure Connection of three string inverters to
different phases of a grid connection, p. 63
Material damage due to incorrect connection to a 3-
phase grid
If the phases are incorrectly connected to a 3-phase
grid, this can cause material damage due to
overvoltage: e.g. damage to the device electronics.
Do not inadvertently connect the string inverter

between 2 phases
 Do not mix up phase and N
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Bosch Power Tec GmbH