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2.3 Connectingtothegrid(ACutility)

A) Measure the grid voltage and frequency. It should be 230VAC (or 220VAC) , 50/60Hz and single phase.

B) Open the breaker or fuse between the PV inverter and the grid.

C) For the inverter, connect AC wires as follows:

Terminal

Pressingscrewcap

Shell

Ground

Model Area (mm2) AWG no.

APV 1700-2M-TL ... APV 3100-2M-TL 4 12

APV 4400-2M-TL ... APV 5200-2M-TL 6 10

2.4 ConnectingtothePVpanel(DCinput)

(*) DC Power switch not included in APV ....-2M-TL-UK version.

A) Always make sure that the maximum open circuit voltage (Voc) of each PV string is less than 580 Vdc

for APV 4400-2M-TL and APV 5200-2M-TL inverters, 500 Vdc for APV 2300-2M-TL and APV 3100-2M-

TL inverters and 450 Vdc for APV 1700-2M-TL inverters. The length of input wire must be less than 30m.

B) Use MC (multi-contact) connectors for PV array terminals

C) Connect the positive and negative terminals from the PV panel to positive (+) terminals and negative (-)

terminals on the PV-Inverter.

D) Before connecting PV panels to DC terminals, please make sure the polarity is correct. Incorrect polarity

could permanently damage the unit. Checks short-circuit current of the PV string. The total short-circuit

current of the PV string should be less than the inverter’s maximum DC current.

E) High voltages exist when the PV panel is exposed to the sun. To reduce risk of electric shock, avoid

touching live components and treat connection terminals carefully.

gefran RADIUS APV 1700-2M-TL User Manual

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