SMA SC 500CP-US - Manual (Page 58)

9 Grounding Connection SMA America, LLC
58 SCCP-US-IA-US_en-41 Installation Manual
Requirement:
☐ The cable requirements must be complied with (see Section 9.1 "Requirements for the Cables and Cable
Connection", page 56).
Additionally required mounting material (not included in the scope of delivery):
☐ Clean cloth
☐ Ethanol cleaning agent
Procedure:
1. Strip the grounding cable insulation.
2. Fit terminal lugs to the grounding cable.
3. Clean the contact surfaces using a clean cloth and ethanol cleaning agent.
4. Clean the contact surfaces with the non-woven abrasive until they have a light metallic sheen. At the same time,
ensure that the coated contact surfaces are not damaged.
5. Remove metal dust using a clean cloth and ethanol cleaning agent and do not touch the contact surfaces after
cleaning.
6. Connect the grounding cable to the grounding connection busbar with the appropriate torque in accordance with
the circuit diagram. Only use the screws, washers and nuts included in the scope of delivery.
7. Secure the grounding cable to the cable support rail.
8. Make sure that the grounding cable is correctly mounted.
C Fender washer
D Two-hole terminal lug
E Copper bus bar
F Screw M12
Connection option Cable cross-section Torque
Copper terminal lug on copper bus
bar
6 AWG to 350 kcmil
(16 mm² to 185 mm²) 44.5 ft.-lbs. (60 Nm)
Tin-plated aluminum terminal lug on
copper bus bar
6 AWG to 350 kcmil
(16 mm² to 185 mm²) 27.5 ft.-lbs. (37 Nm)
Position Description