Epever MPPT Tracer1206AN User Manual page 14


PV wire size
The PV array's output current varies with its size, connection method, and sunlight angle. The minimum
wire size can be calculated by its ISC (short circuit current). Please refer to the ISC value in the PV
module's specifications. When the PV modules are connected in series, the total ISC equals any PV
module's ISC. When the PV modules are connected in parallel, the total ISC equals the sum of the PV
module's ISC. The PV array's ISC must not exceed the controller's maximum PV input current. For max.
PV input current and max. PV wire size, please refer to the table as below:
Model
Tracer1206AN
Tracer1210AN
Tracer2206AN
Tracer2210AN
Tracer3210AN
Tracer4210AN
When the PV modules are connected in series, the total voltage must not exceed the
max. PV open circuit voltage 46V(Tracer**06AN) or 92V(Tracer**10AN) at 25℃
CAUTION
environment temperature.

Battery and Load Wire Size
The battery and load wire size conform to the rated current, the reference size as below:
Model
Tracer1206AN
Tracer1210AN
Tracer2206AN
Tracer2210AN
Tracer3210AN
Tracer4210AN
 The wire size is only for reference. Suppose there is a long distance between the
CAUTION
Max. PV input current
Rated Rated
charge discharge
current current
10A
20A
30A
40A
PV array and the controller or between the controller and the battery. In that
case, larger wires can be used to reduce the voltage drop and improve
10A
20A
30A
40A
Battery wire size
2
10A 4mm /12AWG
2
20A 6mm /10AWG
2
30A 10mm /8AWG
2
40A 16mm /6AWG
10
Max. PV wire size
2
4mm /12AWG
2
6mm /10AWG
2
10mm /8AWG
2
16mm /6AWG
Load wire size
2
4mm /12AWG
2
6mm /10AWG
2
10mm /8AWG
2
16mm /6AWG