Eaton PV240 User Manual

Eaton Corporation Page 48 Ver 1.1WARNINGDo not mix the connection with the wrong polarity. This may causedamage to the PV Inverter; therefore, it is very important to do thepolarity check before connecting the DC power to the wiring box.Do not startup the PV Inverter while the fuse cover is removed.The dummy fuses must be kept within fuse holder if there is noprotection fuses are planned to be installed.CAUTIONEach port (terminal) of the multi-string DC input terminal is only ableto connect with a maximum 20A connection. It is important to ensurethe correct configurations of the PV module connection are withinthe electrical specification.IMPORTANTIt is important to follow the standard formula for the DC fuseselection if string fuses are planned to be used.Insulation ProtectionAn insulation glove should be worn during the servicing period.D) When the DC power is delivered from an external combiner to the wiringbox of the PV Inverter, use a multi-meter to measure the DC voltage onthe connected polarity port of the DC input terminal in order to ensurethe DC input power is applied within the electrical specification of PVinverter.E) In last, turn off the circuit breaker for the PV sting of DC input side andthen continue with the procedures in next section in order to completethe configuration cabling for the AC side.