118
Replacing String Fuses
Safety
Preparation
The side areas of the housing cover are designed to function as carrying grips and/or han-
dles.
WARNING! An electric shock can be fatal. Danger from grid voltage and DC volt-
age from solar modules.
- The DC main switch is used only to switch off power to the power stage set.
When the DC main switch is turned off, the connection area is still energized.
- Only licensed electricians should access the connection area.
- All maintenance and service work should only be carried out when the power
stage set has been disconnected from the connection area.
- Maintenance and service work on the inverter power stage set should only
be carried out by Fronius-trained personnel.
WARNING! An electric shock can be fatal. Danger from residual voltage from ca-
pacitors.
You must wait until the capacitors have discharged. Discharge takes 3 minutes.
CAUTION! An inadequate grounding conductor connection can cause serious in-
juries to persons and damage to (or loss of) property.
The housing screws provide an adequate grounding conductor connection for the
housing ground and should not, under any circumstances, be replaced by differ-
ent screws that do not provide a proper grounding conductor connection.
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