What the SolaX X3-MEGA G2 50kW is

SolaX X3-MEGA G2 50kW Three Phase Inverter is a commercial and industrial string inverter designed for larger three-phase on-grid PV systems. The exact model in this row is X3-MEGA-50.0-G2, which sits in the middle of the X3-MEGA G2 family between the 40kW and 60kW variants. That position matters because it gives the project a useful balance of output, tracker count and array capacity without moving straight to the largest model in the range.

The X3-MEGA G2 family is built around commercial priorities rather than domestic convenience. That means multiple MPPTs, strong string current handling, export power control, remote maintenance tools and a housing designed for demanding site conditions. In the 50kW version, those features are paired with five MPPT trackers and a recommended PV array size of up to 75kWp, which makes the inverter especially relevant for larger commercial rooftops and split-array designs.

Who it suits

The 50kW X3-MEGA G2 suits schools, offices, warehouses, farms, workshops, retail units and other three-phase commercial buildings where the solar system is too large for smaller C&I inverters but does not need the full 60kW model. It is especially useful where the roof layout is spread across several elevations or where strings need to be separated more intelligently because of shading, distance or orientation differences.

It also suits projects where system visibility and maintenance support matter. Remote setting, remote upgrade and I-V curve diagnosis are not just brochure features on a commercial system. They can reduce time on site, improve fault finding and help operators keep closer track of performance across the life of the installation.

Key features and practical benefits

• 50kW rated AC output for three-phase commercial systems.
• Up to 75kWp maximum recommended PV array power.
• Five MPPT trackers with two strings per tracker.
• 32A maximum input current per MPPT.
• 150% PV oversizing and 110% overload output support.
• 180V to 1000V MPPT voltage range and 1100V maximum PV input voltage.
• Built-in export power control.
• Remote setting and upgrading.
• I-V curve diagnosis and string current monitoring.
• 24-hour operation monitoring support.
• IP66 protection and smart cooling.
• Optional Type II SPD on AC and DC sides and optional AFCI.

The biggest benefit is array flexibility. Five MPPT trackers and ten string inputs allow the inverter to support more varied commercial roof plans than a simpler two- or three-tracker alternative. That can materially improve system design on sites where PV cannot be placed on one uninterrupted plane.

The second major benefit is commercial serviceability. Features such as remote setting and I-V curve diagnosis make the inverter more suitable for managed installations where the operator or installer needs better access to performance data and troubleshooting tools over time.

Technical details that matter in practice

The official X3-MEGA G2 datasheet lists the 50kW model at 75kWp maximum recommended PV array power, 1100V maximum PV input voltage, 600V nominal PV input voltage, 200V to 1000V operating voltage range and 180V to 1000V MPPT voltage range. The same sheet confirms five MPPT trackers with two strings per tracker, 32A maximum input current per MPPT and 46A maximum short-circuit current per MPPT.

On the AC side, the inverter is listed at 50kW rated output power, 55kVA maximum output apparent power and 83.3A or 79.7A maximum output continuous current depending on grid voltage. Maximum efficiency is listed at 98.4% and European efficiency at 98.1%. The enclosure is IP66 rated, the cooling concept is smart cooling and communication interfaces are listed as RS485, DRM and meter. Dimensions are 630 x 521 x 286mm and net weight is 44.5kg.

Those figures matter because they show the inverter is not simply a larger domestic product. It is built around commercial electrical conditions, higher string current, stronger environmental protection and system-level monitoring support.

Installation and fitment considerations

The 50kW X3-MEGA G2 should be selected for three-phase sites where the array size, electrical infrastructure and export conditions justify a dedicated C&I inverter in this class. The five-MPPT arrangement is especially useful on buildings where the array is divided across several roof sections. That helps keep string design cleaner and can reduce the compromises often forced by simpler tracker layouts.

Because the inverter includes built-in export power control, it can also suit projects where export management is part of the system design. Optional AC and DC surge protection and optional AFCI should be specified properly at the project stage rather than assumed. That allows the final installation to reflect the exact protection approach needed on the site.

The IP66 enclosure and smart cooling support installation in more exposed locations, provided the mounting and wider electrical design follow the product guidance and local installation standards.

Why this exact variant may be the right choice

The X3-MEGA G2 50kW is the right choice when a commercial system needs more tracker flexibility and more array capacity than the 40kW version offers, but does not need the full output and six-MPPT layout of the 60kW model. That makes it a particularly useful middle-ground inverter for varied commercial rooftops.

Compared with the 40kW model, it adds another MPPT tracker and increases recommended PV array size from 60kWp to 75kWp. Compared with the 60kW version, it keeps the project at a slightly lower output and weight point while still delivering strong commercial monitoring and export-aware control. That balance is exactly what makes the 50kW model attractive on many business installations.

FAQ

Loading delivery information...