Checking The Choke Contacts; Installing The Ast Assembly - SMA NR-STP-AST10-12 Replacement Manual

SMA Solar Technology AG
7

Checking the Choke Contacts

• Check wether all choke domes are in their original
position by pulling the domes out slightly.
8

Installing the AST Assembly

There are assemblies on this assembly with a safety extra-low voltage circuit (SELV circuit). To
ensure the safety of the circuits, an optical inspection must be carried out before installation.
Figure 2 : Position of the SELV circuits
Position Designation
A SELV circuit
Procedure:
1. Check the SELV circuits for visible dirt before mounting the assembly. If dust or other deposits
cover the assembly, do not use it and contact the Service.
Replacement Manual
7 Checking the Choke Contacts
A
AST-STPTL10-RM-xx-10
A
A
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