SMA STP 15000TL Installation - Manual (Page 33)

SMA Solar Technology AG Electrical Connection
Installation Manual STP20TLHE-IA-IEN122222 33
11. Close all terminals of the AC terminal again until they snap into place.
12. Tighten the swivel nut firmly to the cable gland.
6.3.3 Connecting the Second Protective Conductor
If the installation requires, the earth terminal can be used to connect a second protective conductor
or as equipotential bonding.
1. Take the clamping bracket, cheese-head screw M6
and conical spring washer M6 out of the accessory
kit.
2. Insert the stripped earthing cable (D) under the
clamping bracket (C) (maximum conductor cross-
section 16 mm²).
3. Fasten terminal (C):
– Attach conical spring washer on the screw.
Here, the grooved side of the conical spring
washer must point to the screw head.
– Tighten the screw (torque: 6.0 Nm).
☑ The teeth of the conical spring washer are
pushed into the clamping bracket. The
conductive earthing cable is conductively
connected to the enclosure.
DANGER!
Danger to life due to high voltages in the inverter
• Do not switch on the miniature circuit-breaker until the PV array has been connected
and the inverter is securely closed.