User Manual UM0025_ASW3000-6000H-S2_EN_V02_0722 27
6.2 System layout of units without integrated DC switch
Local standards or codes may require that PV systems are fitted
with an external DC switch on the DC side. The DC switch must
be able to safely disconnect the open-circuit voltage of the PV
array plus a safety reserve of 20%.
Install a DC switch to each PV string to isolate the DC side of the
inverter. We recommend the following electrical connection:
DC BOX
(optional)
AC BOX
DC INPUT
AC OUTPUT
To Grid
TO grounding electrode
+
-
PE
L
N
PE
INVERTER
Second
grounding
+ -
+
-
L
PE
N
Damage to the inverter due to electrostatic discharge
• Touching electronic components can cause damage to or
destroy the inverter through electrostatic discharge.
• Ground yourself before touching any component.
Summary of Contents for ASW H-S2 Series
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