Fire Prevention - Fronius 3.0-3-S Manuel D'installation

Fire prevention

CAUTION! Risk of damage to inverters and other live photovoltaic system components due to poor or
unprofessional installation.
Poor or unprofessional installation can cause overheating of cables and terminal connections and re-
sult in arcs. These can cause heat damage, which in turn may lead to fires.
Observe the following when connecting AC and DC cables:
- Tighten all terminals to the torque specified in the Operating Instructions
- Tighten all grounding terminals (PE / GND), including free
ones, to the torque specified in the Operating Instructions
- Do not overload cables
- Check cables for damage and verify that they are laid correctly
- Take note of the safety instructions, Operating Instructions
and any local connection regulations
Using fastening screws, always screw the inverter firmly to the
mounting bracket to the torque specified in the Operating Instructi-
ons.
Ensure that the fastening screws are tight before starting the inver-
ter!
NOTE! Protection class IP65 is only applicable if the inverter is permanently attached to the mounting
bracket with screws.
Protection class IP20 applies to the mounting bracket with no inverter or venting duct.
NOTE! The solar modules connected to the inverter must comply with the IEC 61730 Class A stan-
dard.
NOTE! When photovoltaic modules are exposed to light they supply current to the inverter.
NOTE! If the cable insulation of the AC cable is not designed for a maximum of 1000 V, AC and DC
cables must not be crossed when connecting in the inverter. 
If crossing the cables during connection is unavoidable, the AC cable must be laid in one piece of the
protective hose supplied with the inverter.
AC and DC cables can only be laid together if the insulation on both cables is designed for the max.
possible voltage of 1000 V.
Observe the manufacturer's connection, Installation and Operating Instructions at all times. To reduce the ha-
zard potential to a minimum, perform all installation and connection work carefully according to the instructions
and regulations.
Refer to the device Operating Instructions / Installation Instructions for the tightening torques to be used at the
relevant terminal connections.
Detailed, country-specific warranty terms are available on the internet: 
Fronius manufac-
turer's warranty www.fronius.com/solar/warranty
To obtain the full warranty period for your newly installed Fronius inverter or storage sys-
tem, please register at: www.solarweb.com.
6
2
2.5 Nm