SMA Solar Technology AG
2 Installation
Installation Manual
STP60-JP-10-IA-en-11
17
2.7 Cable Entry
The mounting brackets for the cable glands are already
pre-mounted.
Figure 2.18 AC cable gland
Figure 2.19 DC cable gland
Table 2.1 Suitable conductor sizes
1)
Always observe the ampacity of cables used.
2.8 Ethernet Connections
When used outdoors, make sure to use a suitable cable (see
Section 5.6 “Technical Data of the Communication
Interface”, page 35). If the cable is very stiff, an
intermediate terminal should be used to achieve greater
flexibility of the cable before it is connected to the inverter.
For some cables, it might be sufficient to remove the hard
outer mantle of the part of the cable inside the inverter
enclosure. In this way, the RJ45 Ethernet connectors
mounted on the printed circuit boards are protected against
excessive stress, which could lead to damages or problems
with the connection.
Procedure
:
1. Do not remove the RJ45 connector on the Ethernet
cable.
2. Run the cables through the base of the inverter via
cable glands. See figure 2.20.
3. Cut slice in rubber grommet. Place the grommet in the
gland to ensure proper seal.
4. Plug into the Ethernet connector.
Figure 2.20 Run cables through cable glands
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
1)
Conductor material
Cable sheath diameter with supplied
cable gland
AC+PE
16 to 100 mm²
Al/Cu
38 to 44 mm
PV
16 to 60 mm²
Cu
13 to 18 mm
