Install MPPT Paralleling Jumpers (Optional)

Where the DC input current exceeds an MPPT rating of 13 A, jumpers can be used to allow a single MPPT to intake strings with a total DC input current of up to 26 A. 4-inch MPPT paralleling jumpers are included in the Solar Inverter accessory bag.

Informational PurposesAn informational icon, calling your attention
Note
If needed, 4-inch jumpers can be made from 10 AWG copper wire.

The following MPPTs can be paralleled using jumpers:

  • MPPT DC inputs 1 and 2 paralleled with both positive and negative
  • MPPT DC inputs 3 and 4 paralleled with both positive and negative

Install Jumpers with the 3.8 kW Solar Inverter Model

  1. Land string with 13+ A (IMP) on MPPT 1 (lower row).
  2. Install jumper from MPPT 1 to MPPT 2 (upper row).
    Figure 1. Parallel Strings per MPPT
    Informational PurposesAn informational icon, calling your attention
    Note
    Do not use the PV 3+, PV 3-, PV 4+, or PV 4- connectors on the 3.8 kW Solar Inverter model. These MPPTs are not functional.
    Figure 2. Paralleled MPPTs with Parallel Strings
    Informational PurposesAn informational icon, calling your attention
    Note
    Do not use the PV 3+, PV 3-, PV 4+, or PV 4- connectors on the 3.8 kW Solar Inverter model. These MPPTs are not functional.

Install Jumpers with the 7.6 kW Solar Inverter Model

  1. Land string with 13+ A (IMP) on MPPT 1 (lower row).
  2. Install jumper from MPPT 1 to MPPT 2 (upper row).
  3. Land string with 13+ A (IMP) on MPPT 3 (lower row).
  4. Install jumper from MPPT 3 to MPPT 4 (upper row).
    Figure 3. Parallel Strings per MPPT
    Figure 4. Paralleled MPPTs with Parallel Strings