Growatt MID 33-50KTL3-X2 Quick Manual

1 Overview
.
1 2 3 4
(1)Front panel (2)Touch button (3)LCD screen
(6)Heat sink (7)DC switch (8)PV terminal
(11)Vent valve (12)AC terminal
Note:
1.This document is for quick installation guidance only, please refer to User Manual for more details.
2.Growatt shall not be liable for any damage resulting from unproper installation.
2 . Installation
2.1
System overview
Installation requirements
2.2
Wall mounting
Keep the
bracket
installed
horizontally.
Note：
1.When drilling holes in the wall, avoid water and electricity pipes, otherwise it may cause danger.
MID 33-50KTL3-X2 Quick Guide
5 6 7 11 8 9 10
(4)LED indicator (5)Mounting bracket
(9)RS485 port (10)USB port
579
260 112
≥300mm
≥500mm ≥500mm
≥500mm
2.3
Communication module installation
Install
Inverter side
▲Up
12
3.
Electrical connection
Please prepare the cable before connecting as follows.
No. Cable name
Protective grounding
1
wire
2 AC output wire
3 PV input wire
4 Communicatio wire
3.1
Grounding
230 230
218
3.3
DC connection
3.3.1 PV input terminal installation
1
Positive metal terminal 8- 10mm
Negative metal terminal
4
Positive metal terminal
Negative metal terminal
Uninstall
Inverter side
Type Recommend model
Single multi-core yellow-green wire 16mm² - 20mm²
four or five polychromatic
30mm² - 35mm²
multi-core copper wires
4mm² - 6mm²
PV wire（such as PV1-F)
RS485 /
3.2
AC output connection
It is recommended to use 30-35mm² Connect to the inverter
side.
cable.
10-12mm
Note:
Waterproof must be blocked with fireproof
mud to prevent water.
2
4mm² - 6mm²
4mm² - 6mm²
Please make sure the cable can not be
pulled out after pressing.
5
Inverter side
Inverter side
Note:
1.Please make sure all switches are in "OFF"
position before wiring. For personal safety,
please do not operate with electricity.
2.If the diameter of the cable does not match
the terminal, or the cable is aluminum wire,
please contact our after-sales personnel.
Install the AC side water
proof cover.
inverter side
3
Negative metal terminal
Pull the PV cable make sure there
is no loose or shaking.
Make sure the cable polarity is
correct and voltage is less than
1100V.