Technical data

Chapter 3 Installation

for the AC cables and grounding cable.

A，B：Conduit for DC cables

C: Conduit for communication cables

D: Conduit for AC cables

E: Conduit for the grounding cable

(d) Check the seal of the cover;

(e) Restore the cover to the equipment，attach the

screws;

(f) Insert the conduits into the openings;

(g) Attach the conduits with the appropriate hubs.

3.4.1 DC connection

(1) The following rules should be abided by to ensure

the highest efficiency of the PV inverter:

(a) First, make sure that the maximum open circuit

voltage of the PV modules is lower than 600Vdc

under any conditions;

(b) Ensure that the polarity of DC input is correct, i.e.

the positive pole of PV module is connected to the

positive pole of the inverter’s DC input, and the

negative pole of PV module is connected to the

negative pole of the inverter’s DC input;

so 35 ～ 95mm

copper core cables with an

insulation rating of 90℃ are recommended for

inverter’s DC input, as shown in Table 3-2：