Cable Entry - SMA SUNNY TRIPOWER 60 Installationsanleitung

2 Installation
The STP 60 inverter may only be connected to a three-phase
grid.
On the AC cable, strip insulation on all four wires. The
protective conductor (PE) must be longer than the grid wires.
1. Verify that the nominal voltage of the inverter matches
the grid voltage.
2. Ensure that the main circuit breaker is released, and
take precautions to prevent reconnection.
3. Open the front cover.
4. Insert the cable through the AC cable gland to the
connecting terminal plate.
5. Connect the three grid wires (L1, L2, L3) and the
grounding conductor (PE) to the connecting terminal
plate with the respective markings. The grounding
conductor is marked with the symbol shown in figure
2.19.
6. Optional: Make an extra PE connection at the
secondary PE grounding points using the external
device grounding bolt delivered with the inverter.
See figure 5.2.
7. All wires must be properly fastened with the correct
torque. See Section 5.5, page 41.
Figure 2.19 Protective conductor symbol
LEAKAGE CURRENT HAZARD
Insufficient grounding of the inverter can lead to serious
injuries or lethal injuries.
• Ensure the correct grounding of the devices by a
certified electrical installer.
Terminal Range
AC+PE 16 to 95 mm²
6 to 4/0 AWG
PV 16 to 95 mm²
6 to 4/0 AWG
Table 2.1 Suitable conductor sizes
1)
Always observe the ampacity of cables used.
26 STP60-10-IA-xx-11
1)
Maximum permissible
conductor temperatures
90ºC
90ºC
SMA Solar Technology AG / SMA Solar Technology America LLC

2.7 Cable Entry

Options for cable entry
• For STP 60-10: cable glands (pre-mounted)
• For STP 60-10-US: 2" cable conduit adapter (included
in the scope of delivery)
When replacing the 2" cable conduit adapter ensure that
the screws are tightened in the sequence shown in figure
2.20 and figure 2.21. First tighten all screws with 0.75 Nm
and then 2.5 Nm.
Figure 2.20 AC mounting bracket
Figure 2.21 DC mounting bracket
Conductor
material
Al/Cu
Al/Cu
Cable sheath diameter with supplied
cable gland
37 to 44 mm
14 to 21 mm
Installation Guide