6 Electrical Connection
SMA Solar Technology AG
Installation Manual 55PPM-10-IA-en-16
6.10 Periodic Actions
6.10.1 Inserting the Cables
Depending on the design of the connecting plate, you have 2 possibilities to insert the cables into the product:
• Inserting the cables through the cable glands into the product
• Inserting the cables through the conduits into the product
CAUTION
Risk of injury due to escaping of hot fluids
In the event of a cable fire, hot liquid may be generated and escape through open knockouts underneath the
product. Escaping hot fluid may cause injuries.
• Ensure that all of the opened knockouts are used for the insertion of cables.
• Close unused knockouts with a suitable material.
NOTICE
Damage to the product due to sand, dust and moisture ingress
Sand, dust and moisture penetration can damage the product and impair its functionality.
• Only open the product if the humidity is within the thresholds and the environment is free of sand and dust.
• The product must not be opened in case of splashing water (e.g. from an irrigation system).
• Do not open the product during a dust storm or precipitation.
• Close the product in case of interruption of work or after finishing work.
• Only operate the product when it is closed.
• Store the closed product in a dry and covered location. Observe storage conditions.
• The temperature at the storage location must be in the specified range.
• When using cable glands: Do not take the filler plugs out of the unused cable glands.
Inserting the cables through the cable glands into the product
The standard connecting plate with knockouts is used for attaching cable glands.
Procedure:
1. Ensure that the cables are voltage-free.
2. Open the product using the provided switch cabinet key.
3. Remove the fastening screws from the connecting plate (TX25) and take off the connecting plate.
4. For each connection cable, select 1 of the supplied cable glands that matches the outer diameter of the selected
cable.
5. Select knockouts that match the selected cable glands.
6. Break out the selected knockouts. Ensure not to damage the coating of the connecting plate.
7. Insert the fastening screws into the connecting plate. Guide the
fastening screws through the seal without changing the position
and location of the seal.
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