SMA WB 3000-21 Installation - Manual (Page 40)

6 Electrical Connection SMA Solar Technology AG
40 WB3-5TL-21-IA-en-10 Installation Manual
5. Ensure that all DC connectors are securely in place.
4.
Damage to the inverter due to moisture penetration
The inverter is only properly sealed when all the unused DC inputs are sealed 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.
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