- fix connection cable with strain relief device - close connection area, install cover DC plug example: multicontact plug - max. current at MC3 = 20 A - max. current at MC4 = 30 A Connection rail with 5 pairs of plugs Strain relief for connection cablel
DC sockets -
Note! When installing the DC plugs for connection with the solar modules, make sure that the poles of the solar modules correctly correspond with the symbols „+“ and „-“.
DC plug + Illustration also applicable for connection rail with 1 - 5 pairs of plugs
- install the multicontact plugs at plus and minus poles of solar module strings - connect the strings to the FRONIUS IG unit Note! Never disconnect the DC plugs from the respective sockets during power feed operation of the FRONIUS IG unit. Before disconnecting the strings always first disconnect the mains supply or switch the FRONIUS IG to standby operation. Not complying with this instruction may damage the connection plugs. Should an electric arc develop during disconnecting, both plug and socket must be replaced. Do not re-use defective DC plugs.
3. AC plug connection and DC plug
To make installation and maintenance work easier, the solar modules and the mains are connected with plugs. Depending on which version is used, up to five pairs of DC plugs are available for connecting the solar modules. Connection to the mains is effected by means of a touchproof AC plug which can be latched. - Fix the FRONIUS IG unit on the wall as shown in chapter „Installation“ Note! Only cables up to a cross section of 4 mm² are permitted for the AC-plug-type connector.
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EN
2. DC plug (continued)
