135
Technical Data
Fronius IG
Plus 35
Input data
MPP voltage range 230 - 500 V DC
Max. input voltage 600 V DC
(at 1000 W/m²/ -10 °C (14 °F) in an open circuit)
Max. input current 16 A DC
Output data
Nominal output power (P
nom
) 3.5 kW
Max. output power 3.5 kW
Nominal mains voltage 1 ~ NPE 220 / 230 V, +10 / -15 % 
1)
Nominal output current (one phase) 15.9 / 15.2 A AC
Nominal frequency 50 - 60 Hz 
1)
Harmonic distortion < 3.5 %
Power factor cos phi 1
Max. permitted mains impedance Zmax at PCC 
2)
None
General data
Maximum efficiency 96 %
Europ. max. efficiency 95.0 %
Power consumption at night < 1 W
Cooling Controlled forced ventilation
Protection class IP 44
Dimensions l x w x h 244 x 434 x 631 mm (9.6 x 17.1 x 24.8 in)
Weight 25 kg (55.1 lb)
Permissible ambient temperature -20 °C - +50 °C (-4 °F - +122 °F)
(with 95% rel. humidity)
EMC emission class B
Protective equipment
DC insulation measurement Warning when R
ISO
 < 500 kOHM
DC overvoltage protection integrated
Protection against reversed polarity integrated
Manifestation of DC overload Operating point shift