What the Growatt APX Power Module 3PH (TP) does

The Growatt APX Power Module 3PH (TP) is the control unit that allows a compatible three-phase Growatt inverter to work properly with the APX HV battery platform. In Growatt’s official APX HV Battery S1/S2 datasheet, the APX three-phase battery system uses either the APX 98020-P1 or APX 98034-P2 power module depending on the application. This specific product is the APX 98034-P2 version, which is the higher-output option.

That matters because it defines where this unit belongs. It is not a general-purpose battery accessory. It is the system control layer for Growatt’s three-phase APX battery architecture and is intended to sit at the core of an official APX 5.0P installation using the correct inverter path.

Who it suits

This power module suits larger homes, premium three-phase residential properties, mixed-use buildings and commercial-style projects using compatible Growatt battery-ready three-phase inverters. It is especially relevant where the project uses either the MOD 3000-10000TL3-XH(BP) family or the MID 11-30KTL3-XH range and wants the higher-capability APX 98034-P2 battery control route.

It also suits projects where battery power throughput matters more. Growatt’s S1/S2 datasheet clearly distinguishes between the two three-phase power module options, and the 98034-P2 is the stronger choice where more charge and discharge capability is required.

Verified technical role in the APX S1/S2 system

Growatt’s official APX HV Battery-S1/S2 datasheet identifies the three-phase power module options as APX 98020-P1 and APX 98034-P2. The same document confirms that the APX battery system uses APX 5.0P-B1 battery modules and supports a total system size of 5kWh to 30kWh using 1 to 6 battery modules.

For the power module side of the system, Growatt’s published S1/S2 data confirms:

• Power module options: APX 98020-P1 / APX 98034-P2
• APX 98034-P2 maximum charge/discharge power: 15kW
• Communication: CAN/RS485
• Dimensions shown for the three-phase power module section: 690 × 185 × 295mm
• Weight shown in the same section: 16kg
• Maximum current shown in the shared section: 26A
• Monitoring parameters: SOC, system voltage, current, cell voltage, cell temperature and PCBA temperature

The datasheet also makes the inverter compatibility especially important. It shows:

• APX 98020-P1 for MOD 3000-10000TL3-XH(BP)
• APX 98034-P2 for MOD 3000-10000TL3-XH(BP) / MID 11-30KTL3-XH

That is the clearest reason to choose this specific variant. If the project is using MID-XH compatibility or needs the higher 15kW battery power path, the APX 98034-P2 is the correct module.

Why it matters in practice

Three-phase battery systems demand cleaner system logic than smaller, simpler residential storage setups. The inverter needs reliable communication with the battery system. The storage stack needs proper monitoring. The installer needs a control path that matches the intended inverter family. This power module provides that official Growatt route.

Growatt’s APX HV product page also highlights the wider platform benefits around module-level energy optimisation, mixing new and old battery packs, and mixing different capacities. Those are important long-term advantages because they make later expansion more practical and help the battery system stay useful as the project evolves.

Battery platform and expansion logic

The APX S1/S2 system is built around APX 5.0P-B1 battery modules and scales from 5kWh to 30kWh. In practical terms, that means the same core three-phase platform can be used for a modest battery-ready installation or for a more substantial residential or light commercial system with multiple modules.

For installers and specifiers, this modularity matters. It creates a more flexible design path and allows the owner to size storage more intelligently. They can avoid overcommitting on capacity at the first stage while still staying on the correct Growatt architecture for future growth.

Installation and system design considerations

Growatt’s current configuration material shows the APX HV three-phase route paired with MOD 3000-10000TL3-XH(BP) and MID 11-30KTL3-XH systems. It also references accessory items including the APX Battery Base, APX 5.0P-B1 Parallel extension cable and, in two-cluster layouts, the APX Cascading Communication Cable.

That matters because the power module is only one part of a correctly designed system. It should be specified alongside the battery modules, base and other official Growatt accessories needed for the exact layout being installed.

Why this 3PH TP version is the right choice

This product is the right choice when the battery system is three phase and the project needs the APX 98034-P2 route rather than the lower-power option. Compared with the single-phase APX 55027-P0, it is designed for a completely different inverter class. Compared with the APX 98020-P1, it gives the verified route into MID 11-30KTL3-XH as well as MOD-XH(BP) compatibility, with a higher 15kW maximum charge and discharge capability.

For larger three-phase systems, that added headroom is the main reason to choose this exact module.

Best-fit applications

• Three-phase Growatt APX battery installations
• MOD-XH(BP) battery-ready projects
• MID-XH battery-ready systems needing APX integration
• Residential or commercial projects needing stronger APX battery power throughput

FAQ

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