SMA Solar Technology AG Electrical Connection
Installation Guide SB30TL_40TL_50TL-IA-IEN120231 51
Connection procedure
1. Open the inverter as described in section 7.2”Opening the Inverter” (page61).
2. Loosen the cable gland's lock nut (H) slightly and
remove the filler-plug from the cable gland.
3. Insert the cable into each inverter.
4. Strip max. 8 mm off the insulated conductors.
Seal in the cable gland
There is a two-part seal in the cable gland.
Remove the internal insert if necessary, e.g. to
lay a thicker cable.
The following guideline values apply:
• Cable diabmeter with seal and insert: 5 mm … 7 mm
• Cable diameter with seal and without insert: 7 mm …13 mm
DANGER!
Danger to life due to high voltages in the inverter.
• Do not use cables with single-layer insulation.
• Strip cable to a maximum length of 15 mm.
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