The above are reference specifications. Please select the appropriate specification and
model according to actual situations.
The wiring diameter is for reference only. If the distance between the inverter and the
battery is relatively long, using a thicker wire can reduce the voltage drop to improve
system performance.
The above are only recommended wiring diameter and circuit breaker. Please select the
appropriate wiring diameter and circuit breaker according to actual situations.
!
!
4. Installation instructions
4.1 Installation precautions
Please read this manual carefully before installation to be familiar with the installation steps.
Be careful when installing battery. Wear safety goggles when installing a lead-acid liquid battery. Once
coming into contact with the battery acid, rinse with clean water timely.
Keep away from metal objects to prevent short-circuit of battery.
The battery may produce acid gas when charging. Make sure that the ambient environment is well-
ventilated.
When installing the cabinet, there must be enough space around the inverter for heat dissipation; Do not
install the inverter and lead-acid battery in the same cabinet to avoid corrosion by acid gas generated
during battery operation.
As false connections and corroded cables may cause extreme heat to melt the cable insulation, burn
surrounding materials and even cause a fire, it is necessary to ensure that the connections are tightened,
and the cables are fixed with ties to avoid loose connections due to shaking of cable on the move.
The system connection cables selected shall have a current density ≤5A/mm2.
During outdoor installation, direct sunlight and rainwater infiltration shall be avoided.
After the power switch is turned off, there is still high voltage inside the inverter. Do not turn on or touch
the internal devices. Carry out relevant operations after the capacitor is discharged.
Do not install the inverter in harsh environments such as moist, oily, flammable or explosive, or heavily
dusty areas.
Polarity at the battery input terminal of this product shall not be reversed. Otherwise, it may damage the
device or cause unpredictable danger.
The AC output is a high voltage, so please do not touch the wiring.
Do not touch the working fan to prevent injury.
It is necessary to confirm that the inverter is the only input device for load, and it is forbidden to use it
in parallel with other input AC power to avoid damage.
4.2 Wiring specifications and circuit breaker selection
Wiring and installation must comply with national and local electrical codes.
Battery input wiring specifications and circuit breaker selection
DC-2P-160A
Model
Rated input current
Battery input wiring specifications
Circuit breaker selection
IU12-2KW
196A
40mm
²
/(3AWG*2)
IU24-3KW
145A
30mm
²
/2AWG
DC-2P-250A
AC output wiring specifications and circuit breaker selection
AC-2P-50A
Model
Rated output current
AC output wiring specifications
Circuit breaker selection
IU12-2KW
18.2A
4mm
²
/11AWG
IU24-3KW
27.3A
6mm
²
/10AWG
AC-2P-32A
09
10
Installation steps:
Step 1: Please read the user manual carefully.
Step 2: Determine the installation position and the space for heat dissipation.
Determine the installation position (wall-mounted or horizontal installation method can be adopted): when
installing the inverter, confirm that there is enough space of at least 200m reserved between the air outlet
and air inlet of the inverter to facilitate air circulation.
4.3 Installation and wiring
Air inlet
200MM
200MM
Air outlet
200MM
200MM
!
The AC device shall be determined based on the inverter's continuous output power. The impact
power of the AC device cannot be higher than the inverter's instantaneous impact power.
Otherwise, the inverter may be damaged.
!
Before wiring, switch the inverter to the OFF.
Do not close the circuit breaker or fuse during wiring, and check if the electrode leads of each
component are properly connected.
The battery terminal shall be equipped with a fuse selected according to 2-2.5 times of the rated
input current of the inverter, and the fuse must be at least 150 mm away from the battery
terminal.
There is no reverse connection protection for the input, check if the Positive and Negative are
connected correctly before connecting.
Wiring sequence:
3.1 Ground wire
If the device is installed in a closed box, ensure that heat dissipation is allowed through the
container. Otherwise, derate to use the device.
Grounding wire
