MPPT M32-10, User Manual

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7
M32-10 10A 4mm
2
/12AWG
M32-20 20A 6mm
2
/10AWG
M32-30 30A 10mm
2
/8AWG
M32-40 40A 16mm
2
/6AWG
＊
These are the maximum wire sizes that will fit the controller terminals.
CAUTION: When the PV modules are connected in series, the open circuit
voltage of the PV array must not exceed 92V (M**10), at 25
℃
environment
temperature.

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
M32-10 10A 10A 4mm
2
/12AWG 4mm
2
/12AWG
M32-20 20A 20A 6mm
2
/10AWG 6mm
2
/10AWG
M32-30 30A 30A 10mm
2
/8AWG 10mm
2
/8AWG
M32-40 40A 40A 16mm
2
/6AWG 16mm
2
/6AWG
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