Remove housing cover of FI
DANGERLife-threatening voltages inside the FI housing!

Life-threatening voltages inside the FI housing!
Contact can lead to serious injuries or death.
Never open the FI housing in operation!
Switch off the main switch and secure it against being switched on again.
Wait for at least 5 minutes until all capacitors have been discharged!
Before switching on again, close the FI housing.
- 5 mm hexagon socket screw spanner + extension of at least 210 mm