SMA SUNNY HOME MANAGER 2.0 Schnelleinstieg Seite 7

SMA Solar Technology AG
Danger to life due to electric shock if external disconnect switch is missing
High voltages are present in the conductive components. Touching live parts results in death or lethal injuries due to
electric shock.
• Install an external disconnect switch between the product and the grid-connection point. The external
disconnector must be close to the product and easily accessible.
• Before carrying out any work on the product, disconnect the grid side from all voltage sources using the
installed disconnect switch.
Danger to life due to electric shock in case of overvoltages and if surge protection is missing
Overvoltages (e. g. in the event of a flash of lightning) can be further conducted into the building and to other
connected devices in the same network via the network cables or other data cables if there is no surge protection.
Touching live parts and cables results in death or lethal injuries due to electric shock.
• Ensure that all devices in the same network are integrated in the existing overvoltage protection.
Danger of fire due to missing or incorrect fuse
If a fuse is missing or incorrect and a fault occurs, a fire may be caused. This can result in death or serious injury.
• Protect the line conductors of the product with a fuse or a selective circuit breaker with max. 63 A.
Risk of fire due to dirty or oxidized contact surfaces of live aluminum conductors
Connecting dirty or oxidized contact surfaces with aluminum conductors reduces the ampacity of the live terminals,
thereby increasing the transition resistances. This can cause components to overheat and catch fire.
• The contact surfaces are to be cleaned, brushed, and treated with acidic and alkaline substances (e.g.
petroleum jelly or special thermal grease).
Danger to life by switching medical devices
Unintentional switching of medical devices can result in life-threatening situations.
• Do not connect any medical devices to the switching device (e.g. radio-controlled socket/relay).
Risk of injury and fire due to unintentional and unattended switching on of loads
Loads that are switched on via a radio-controlled socket or a relay unintentionally and while unattended can cause
injuries and fires (e.g. an iron).
• Do not connect any loads to the switching device that could endanger persons or cause damage if
unintentionally switched on.
Quick Reference Guide
DANGER
DANGER
WARNING
WARNING
WARNING
WARNING
2 Safety
HM-20-IS-xx-21 7