SMA SC 500CP-US - Manual (Page 70)

10 DC Connection SMA America, LLC
70 SCCP-US-IA-US_en-41 Installation Manual
Procedure:
1. Strip the DC cable insulation appropriately for the terminal lugs to be used.
2. Fit terminal lugs to the DC cables.
3. Clean the contact surfaces using a clean cloth and ethanol cleaning agent and do not touch the contact surfaces
after cleaning.
4. Connect the DC cables with the specified torque in accordance with the circuit diagram. Only use the screws,
washers and nuts included in the scope of delivery.
5. Secure the DC cables on the cable support rail.
Type of terminal lug Torque
Copper terminal lug on copper bus bar 44.5 ft.-lbs. (60 Nm)
Tin-plated aluminum terminal lug on copper bus bar 27.5 ft.-lbs. (37 Nm)
Tin-plated aluminum terminal lug on tin-plated
aluminum bus bar
27.5 ft.-lbs. (37 Nm)
Copper terminal lug on tin-plated aluminum bus bar 27.5 ft.-lbs. (37 Nm)