SMA SUNNY TRIPOWER CORE1-US Instrucciones De Instalación página 29

SMA Solar Technology AG
8. Connect the equipment grounding conductor of the utility grid to the equipment grounding
terminal:
• Strip the insulation of the equipment grounding conductor by 27 mm (1.06 in).
• Slightly loosen one of the screws with which the clip and connection plate are connected
to the equipment grounding terminal and to completely remove the other screw (TX 25).
• Then place the equipment grounding conductor onto the connection plate, route the clip
via the equipment grounding conductor and tighten both screws (TX 25, torque: 6 Nm
(53 in-lb)).
• Ensure that the conductor is on the connection plate.
9. Strip off the conductor insulation of L1, L2, L3 and, if applicable, N by 27 mm (1.06 in) each.
10. In the case of finely stranded wire, provide conductors L1, L2, L3 and, if applicable, N with a
bootlace ferrule.
11. Depending on the grid configuration, connect L1,
L2, L3 and, if necessary, N to the terminals
according to the label. To do so, position each
conductor as far as they will go into the
corresponding terminal and tighten the screw on the
terminal (TX 30, length: 50 mm (2 in), torque:
14 Nm (126 in-lb)).
12.
Danger to life due to electric shock caused by the presence of a bridge
between N and the enclosure when connecting a utility grid with neutral
conductor
The inverter is delivered with a bridge between N and the enclosure as standard. The
bridge is absolutely essential if the connection to a utility grid is established without a neutral
conductor.
• If the connection to a utility grid is established with a neutral conductor, the bridge must
always be removed as described in the next step.
13. When N is present and connected to the
corresponding terminal, remove the bridge installed
as standard between N and the enclosure (
do so, unscrew the screw of the terminal N and the
screw of the grounding point (
bridge from the inverter (TX 30, length: 50 mm
(2 in)).
14. Ensure that the correct conductors are assigned to all the terminals.
15. Make sure that all conductors are securely in place.
Installation Manual
WARNING
). To
) and remove the
6 Electrical Connection
2 L 1
L 2 1
L 3
N
L 1
L 2
L 3
N
STP33-62-US-41-IA-xx-12 29