X3-MGA-50K-G2
The Solax X3-MGA-50K-G2 is the 50 kW three-phase string inverter from the X3-MGA G2 (Mega) series. 98.4% efficiency, 5 MPPT (10 inputs), max DC voltage 1100 V, 150% oversizing (up to ~75 kWp), IP66 protection, I-V diagnosis, smart cooling. Suitable for C&I and ground-mounted systems.
The Solax X3-MGA-50K-G2 is a 50 kW three-phase string photovoltaic inverter from the X3-MGA G2 (Mega) series, designed for large-scale C&I installations: industrial warehouses, shopping centers, solar carports, and ground-mounted systems. With an efficiency of 98.4%, DC voltage up to 1100 V, and 5 MPPT with 10 string inputs, it offers flexibility in designing complex photovoltaic arrays.
The balance between power and compactness
The X3-MGA-50K-G2 maintains the same physical dimensions as the 40K model (630 × 521 × 286 mm, 44 kg) while delivering 25% more power. This makes it ideal for installations requiring high power density per unit of space. With DC oversizing up to 150%, it can handle arrays up to ~75 kWp with a single inverter. Smart air cooling, I-V curve diagnosis, and nighttime reactive power compensation complete the technical profile of an inverter designed for long-lasting professional installations.
X3-MGA-50K-G2 Technical Specifications
| Nominal AC Power | 50 kW |
| Type | Three-phase string inverter — X3-MGA G2 (Mega) series |
| Number of MPPT | 5 MPPT, 2 strings per MPPT (10 total inputs) |
| Max DC current per MPPT | 32 A |
| Maximum DC voltage | 1100 V |
| DC Oversizing | 150% |
| AC Overload | 110% |
| Maximum Efficiency | 98.4% |
| MPPT Range | 180–1000 V DC |
| Protection Rating | IP66 |
| SPD | Type II on AC and DC side |
| AFCI | Optional |
| I-V Diagnosis | Yes |
| Nighttime Reactive Power Compensation | Yes |
| Communication | RS485, WiFi / LAN / 4G (optional) |
| Dimensions | 521 × 630 × 286 mm |
| Weight | 44 kg |
Typical Applications of the X3-MGA-50K-G2
The 50 kW model is particularly suitable for: small and medium industrial warehouses with roof areas between 300–450 m², agricultural companies with photovoltaic greenhouses, solar carports for company parking lots, small to medium-scale ground-mounted systems with bifacial panels on trackers. The integrated export control and compatibility with the smart meter DTSU666-D/CT allow compliance with feed-in limits imposed by the distributor without additional hardware. For systems above 50 kW with a single inverter, the next model is the X3-MGA-60K-G2.
What is included in the supply?
- Solax X3-MGA-50K-G2 three-phase string inverter
- Integrated DC switch
- Installation manual
Frequently Asked Questions
What is the maximum PV power that can be connected to the X3-MGA-50K-G2?
With DC oversizing at 150%, the X3-MGA-50K-G2 can handle up to ~75 kWp of photovoltaic panels (50 kW × 1.5). The practical limit depends on the open-circuit voltage of the strings, which must remain within the maximum 1100 V DC. For systems with high-power panels (500–600 Wp), always check the maximum number of panels per string with the designer.
Can the X3-MGA-50K-G2 be monitored remotely?
Yes, via an optional connectivity dongle compatible with the X3-MGA G2 series (Pocket WiFi 3.0, Pocket LAN 3.0, or Pocket 4G 3.0). With the dongle active, production data is transmitted to SolaX Cloud for real-time monitoring, performance analysis, and remote configuration of inverter parameters.
Do I need to use an EMS PRO 1000 with the X3-MGA-50K-G2?
It is not mandatory for a single inverter. The X3-MGA-50K-G2 autonomously manages export control via the smart meter. The EMS PRO 1000 is recommended when you have a system with multiple inverters (e.g., 2 × 50K in parallel) and want centralized supervision, aggregated reporting, and coordinated export management across all inverters simultaneously.
Is it possible to connect multiple X3-MGA-50K-G2 in parallel at the same connection point?
Yes. Multiple inverters from the X3-MGA G2 series can be connected at the same grid connection point to achieve power outputs above 50 kW (e.g., 2 × 50K = 100 kW, 3 × 50K = 150 kW). In this case, it is advisable to pair the system with the EMS PRO 1000 for centralized export control and aggregated production supervision.
How does the X3-MGA-50K-G2 differ from the X3-MGA-60K-G2?
The X3-MGA-60K-G2 delivers 10 kW more (60 vs 50 kW) and features 6 MPPT instead of 5, for a total of 12 string inputs. It weighs slightly more (45 kg vs 44 kg) but has the same physical dimensions. The choice depends on the required power and the number of distinct array orientations: if you have 6 independent roof sections, the 60K with 6 MPPT offers greater flexibility.
