User Manual

Battery and Load Wire Size
The battery and load wire size must conform to the rated current, the reference
size as below:
Model
Rated Charge
Current
Rated discharge
current
Battery wire size
Load wire
size
MY20
MY30
MY40
20A
30A
40A
20A
30A
40A
6mm /10AWG
10mm /8AWG
16mm /6AWG
2
2
2
6mm /10AWG
10mm /8AWG
16mm /6AWG
2
2
2
CAUTION: The wire size is only for reference. If there is a long distance
between the PV array and the controller or between the controller and
the battery, larger wires can be used to reduce the voltage drop and
improve performance.
CAUTION: For the battery, the recommended wire will be selected
according to the conditions that its terminals are not connected to any
additional inverter.
2.4 Mounting
WARNING: Risk of explosion! Never install the controller in a sealed
enclose with flooded batteries! Do not install in a confined area where
battery gas can accumulate.
WARNING: Risk of electric shock! When wiring the solar modules, the
PV array can produce a high open circuit voltage, so turn off the
breaker before wiring and be careful when wiring.
CAUTION：The controller requires at least 150mm of clearance above
and below for proper air flow. Ventilation is highly recommended if
mounted in an enclosure.
01 02 03 04 05 06 07
08 09 10 11 12 13 14 15 16 17
18 19 20 21 22 23 24 25 26 27
28 29 30 31 32 33 34 35 36