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6 Electrical Connection
Once the inverter is firmly attached to the appropriate location, it can be
connected to the PV power system.
Installation shall comply with local regulations and technical rules. Installation
shall comply with the relevant instructions of AS 4777.1. All electrical
connection should follow the National Wiring Rules of Standard AS/NZS 3000.
Improper operation during the wiring process can cause fatal injury to
the operator or unrecoverable damage to the inverter.
Only qualified personnel can perform the wiring work.
Prior to any electrical connection, keep in mind that inverter has dual power
supplies. It is mandatory for technical personnel to wear personal protective
equipment: helmet, footwear and gloves during the electrical work.
6.1 Terminals Description
All electrical terminals and cable openings of the inverter are located at the
connection cabinet as Fig. 6-1.
Fig. 6-1
Connection Cabinet Description
*Image shown here is for reference only. Actual product you receive may differ.
No. Description
No.
Description
1
DC switch
6
AC connection terminal block
2
Plinth of DC SPDs (Surge
Protection Devices)
7
Second PE terminal
3
Configuration circuit board
8
PV input terminals
4
Cooling Fan
9
Communication cable glands
5
AC connection circuit board
10
AC cable gland
6.2 Connecting Inverter to AC Grid
6.2.1 AC Side Requirements
Only after receiving prior approval from the local grid company as
required, should you connect the inverter to the grid.
Prior to connecting to the utility grid, verify whether the grid voltage and
frequency are within the range of inverter output parameters, referred to
“Appendix”. Otherwise consult local grid company for solution.
AC Side Circuit Breaker
An independent three or four-pole circuit breaker (minimum size value 63A) for
