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Safety Instructions SMA Technologie AG
Page 10 SMC50A_60A-IEN073320 Installation Guide
General safety rules for working on photovoltaic systems:
Follow the instructions in the pictograms, signs and labels on each inverter
and ensure that they are legible at all times.
1. Disconnecting the device
Before you start to work on the unit, disconnect all wires which could
carry voltage to the area you are working on!
2. Protect against reenergizing
To prevent the device from being reenergized ensure that you block
or lock it!
3. Test each unit to ensure that all voltages have been removed
Use a voltmeter to ensure that the unit is completely deenergized!
Ensure that all poles of the unit are free of voltage!