enphase IQ8AC - Sample Wiring Diagram

DATE :
08/08/2023
SHEET:
1 of 1
SCALE:
NTS@A4
DRAWING No: EN-IQ8-1PHN
DRAWING Name: Electrical diagram example: Single-phase IQ8 Series Microinverters (IQ8MC or IQ8AC or IQ8HC) Grid Tied PV System
Q1 1PH+N
Q2 1PH+N
Qn 1PH+N
Consumption measurement CTs installed on Line Conductor
AC Cable 3 Core
(L1, N, PE)
6 mm² Minimum recommended
conductor size, see note 4
~ ~ ~ ~~ ~~ ~~
AC Cable 2x 2.5mm² (L1, N)
~
JB
MCB 1PH+N 20A
MCB 1PH+N 6A
Main Breaker 1PH+N
PV Sub panel Main Panel
RCD - Consumption 1PH+N See note 7 MCB - Consumption 1PH+N
MCB - Production
1PH+N
40 A
RCD - Production
1PH+N
40A, 30mA
See note 7 and 8
Production measurement
CT installed on Line
Conductor
Maximum 8 microinverters per
IQ Cable Section
Single-phase IQ Cable 2x 2.5 mm²
(L1, N)
Array structure earthing where required See note 6
NOTES: 1.These schematics are examples only. These schematics provide recommendations to assist the system designer and installer. 2.The design and installation of the photovoltaic power plant must be carried out in accordance with local electrical standards in the country of installation and must be carried out by competent personnel. 3.Before installing any PV equipment, check the phase-to- neutral voltage at the point of connection. The operating voltage must be within a range acceptable for the 230 V microinverters. 4.The lengths and cross sections of AC cable (between the end of the IQ Cable and the electrical panel) must be determined in accordance with the electrical standards in force in the country of installation. It is recommended that the voltage drop on this cable does not exceed 1% and that overall voltage drop in the PV circuit from the point of connection to the most remote microinverter does not exceed 2%. 5.The 2.5 mm² IQ Cable is usually protected by a 20 A B curve circuit breaker. 6. The equipotential bonding between PV module frames, array mounting structure and the metal microinverter mounting brackets must be installed in accordance with local electrical standards.. 7. Surge protection devices (SPD) and Residual Current Devices (RCD) must be installed accordance with local electrical standards. Enphase microinverters have an Internal surge protection. 8. Enphase microinverters have an integrated High Frequency transformer which provides galvanic separation between DC and AC parts. Where local electrical standards require RCD protection, a Type AC device can be used. 9. Utility meter may be located inside the main panel or as a standalone device.
Maximum Microinverters per 20 A Circuit: 11x IQ8MC or 10x IQ8AC or 9x IQ8HC (Maximum 16 A per phase)
Utility meter See note 9 Utility meter See note 9
kWhkWh
Public Electricity Network
(Grid Connection)
IQ Gateway
Metered
Communication
Gateway
LoadsLoads
Gateway internet connection: - Ethernet LAN cable - Wi-Fi - Mobile Connect Cellular Modem Gateway internet connection: - Ethernet LAN cable - Wi-Fi - Mobile Connect Cellular Modem