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SMA Solar Technology AG
5.3
Grounding the Inverter Enclosure
If a second grounding conductor or equipotential bonding is locally required, you can also ground
the inverter enclosure. This prevents touch current if the original grounding conductor fails.
You can ground each inverter separately or connect several inverters with one another.
Procedure:
• Connect the grounding conductor to the equipotential bonding of the AC distribution board.
5.4
Requirements for Mounting of the Sunny Multigate
WaHiw_Lebensgefahr durch Feuer oder Explosion
Danger to life due to fire or explosion
Despite careful construction, electrical devices can cause fire.
• Do not mount the product in areas containing highly flammable materials.
• Do not mount the product in potentially explosive atmospheres.
Danger of fire due to missing external enclosure
The Sunny Multigate is only protected against fire if it is installed in a distribution box.
Otherwise, the fire risk could lead to personal injury and property damage.
• Only mount the Sunny Multigate in a distribution box.
Damage to the Sunny Multigate from moisture and dust intrusion
Dust or moisture intrusion can damage the Sunny Multigate and impair its functionality.
The Sunny Multigate complies with degree of protection IP20 and must always be installed in a
distribution box. This ensures that the Sunny Multigate is protected against dust and moisture.
• Only mount the Sunny Multigate in a distribution box.
☐ The mounting location must be inaccessible to children.
☐ The mounting location must be suitable for the installation of the Sunny Multigate in a distribution
box.
☐ AC cable route of the entire PV system with Sunny Multigate: maximum 30 m.
If you are installing several Sunny Multigate devices in a PV system, the AC cable of each
Sunny Multigate to the respective inverters must be laid separated from each other in order to
guarantee trouble-free communication between the Sunny Multigate and the inverter.
Installation Manual
SMG-SB240-IA-en-11
5 Mounting
25
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