Block Diagram; Solar Inverter Dc Connector - Steca Grid 20000 Installationsanleitung

3.4 Block Diagram

Figure No. 3
1) DC overvoltage protection, type 3
2) AC overvoltage protection, type 3

3.5 Solar Inverter DC Connector

The PV generator may not exceed the following operational characteristics under any circum-
stances!
Inverter type
Max. DC voltage at each input
Max. current for each DC input triplet
Max. DC current at the input across all connections
Note:
Note:
When using the solar inverter without transformer, do not ground the
positive or negative pole of the PV generator!
WARNING
748.508 | Z01 | 2013-06-10
Block diagram of the StecaGrid 20000 3ph and 23000 3ph
Not observing the requirements may resultin a malfunction and damage to
the DC-Circuit breaker and thus the warranty deemed void!
Should all DC inputs not be occupied, then the open inputs are closed with
MC4 closure caps. By Not observing these requirements the IP65 protec-
tion class can not be guaranteed!
StecaGrid 20000 3ph StecaGrid 23000 3ph
1000 V
25 A
41 A
EN
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