Hoymiles MI-300 Quick Installation Manual

1. Accessories

Item
A AC End Cable (Female), 2 m 12 AWG Cable
B
C
D
*Note: All accessories listed above are not included in the package, and need to be purchased separately. Please contact our sales representative
for pricing information. (M8 screws need to be prepared by installer-self.)

2. Installation Steps

Ensure the microinverter is installed in the required environment. (Refer to product user manual for more details.)

Step 1. Attach Microinverter on Rail

A) Mark the approximate center of each panel on the frame.
B) Fix the screw on the rail.
C) Hang the microinverter on the screw (as
shown in the picture below), and tighten
the screw. The silver cover side of the
microinverter should be facing the panel.
*Note: Please install the microinverter at least 50 cm above the ground/roof for better communication with the Hoymiles DTU.

Step 2. Connect AC Cables of Microinverter

A) Plug the AC connector of the first
microinverter into the connector of the
second microinverter to form a
continuous AC branch circuit.
*Note: The length of AC cable on
microinverter is around 1.23 m. If the
distance between two microinverters is
more than 1.21 m, please use the AC
extension cable between two inverters (as
shown in the picture below).
B) Install the AC end cap on the open AC
connector of the last microinverter in
the AC branch circuit.
Region: Global AP040088 REV2.1 © 2020 Hoymiles Power Electronics Inc. All rights reserved.
Description
M8 × 25 Screws
DC Extension Cable, 1 m
AC Female End Cap, IP67
MI-300/350/400 Quick Installation Guide
01