SMA PPM-10 - Connecting the Insulated Conductor to the Spring-Cage Terminal

6 Electrical Connection
SMA Solar Technology AG
Installation ManualPPM-10-IA-en-1656
8. Reinsert the connecting plate and tighten the screws (TX25,
torque: 2.5Nm (22.2in-lb)). Adjust the connecting plate so that
the broken out knockouts face the rear of the switch cabinet.
9. Unscrew the counter nut from each cable gland.
10. Screw each cable gland onto the designated opening in the connecting plate using the counter nut.
11. Unscrew the swivel nut from each cable gland.
12. For pre-assembled cables perform the following steps:
• Pull the cable support sleeve out of the cable gland.
• Lead the cable through the swivel nut.
• Insert the cable in the cable support sleeve.
• Press the cable support sleeve into the cable gland.
• Ensure that any unused cable openings are sealed with filler plugs.
13. For cables not preassembled, perform the following steps:
• Lead the cable through the swivel nut and through the cable gland.
• Dismantle the cable.
• Strip the insulation of the cable's conductors (insulation stripping length: 8mm to 10mm (0.31in to
0.39in)). Ensure that no remaining pieces of the cable's insulation fall into the enclosure.
14. Ensure that the amount of each cable inserted is of a sufficient length for the selected terminal.
15. Firmly hand-tighten the swivel nuts of the cable glands. This will secure the cables.
Inserting the cables through the conduits into the product
The optional connecting plate without knockouts is used for attaching of conduits.
Additionally required material (not included in the scope of delivery):
☐ Conduits (trade size: 21mm (0.75in) or smaller with suitable reducer bushing)
☐ UL-listed raintight or liquidtight conduit fittings (trade size: 21mm (0.75in) or smaller with suitable reducer
bushing)
Procedure:
1. Ensure that the cables are voltage-free.
2. Open the product using the provided switch cabinet key.
3. Cut openings into the connection plate on the bottom of the enclosure.
4. Insert the conduit fitting into the opening and tighten from the inside using the counter nut.
5. Attach the conduit to the conduit fitting.
6. Guide the cables from the conduit into the product.
7. Ensure that the amount of cables inserted is of a sufficient length for the selected terminal.
6.10.2 Connecting the Insulated Conductor to the Spring-Cage Terminal
To connect the spring-cage terminals, you can use insulated conductors with different designs:
• Insulated conductors with solid wire and large cross-section
• Insulated conductors with stranded wire and bootlace ferrule