32 SB3-5TL-21-BE-en-10 Operating Manual
6 Electrical Connection SMA Solar Technology AG
9.
Damage to the inverter due to moisture ingress
The inverter is only properly sealed when all the unused DC inputs are closed with
DC connectors and sealing plugs.
• Do not insert the sealing plugs directly into the DC inputs on the inverter.
• For unused DC connectors, push down the
clamping bracket and push the swivel nut up to
the thread.
• Insert the sealing plug into the DC connector.
• Tighten the DC connector (torque: 2 Nm).
• Insert the DC connectors with sealing plugs into
the corresponding DC inputs on the inverter.
☑ The DC connectors click audibly into
place.
• Ensure that all DC connectors with sealing plugs
are securely in place.
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