SMA Solar Technology AG 10 DC Connection
Installation Manual SCCPXT-IA-D7-en-42 49
10.3.5 Connecting the DC Cables
Additionally required mounting material (not included in the scope of delivery):
☐Clean cloth
☐ Ethanol cleaning agent
Procedure:
1. Insert the DC cables into the interface cabinet.
2. Strip the DC cable insulation.
3. Fit terminal lugs to the DC cables.
4. Wipe the contact surfaces on terminal lugs and connection lugs with a clean cloth and ethanol cleaner. Do not touch
the surfaces once they have been cleaned.
5. Connect the DC cables with the specified torque in accordance with the circuit diagram. Only use the screws,
nuts and washers included in the scope of delivery and make sure that the screw heads always point forwards.
6. Fasten the DC cables to the cable support rail.
Type of terminal lug Torque
Tin-plated aluminum terminal lug on copper bar 37 Nm
Tin-plated copper terminal lug on copper bar 60 Nm
Tin-plated aluminum or copper terminal lug on aluminum bar 37 Nm
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