120kW / 125kW / 136kW / 150kW
Intelligent Design
Fan self-cleaning function for easier maintenance
Night-time SVG voltage regulation support
AC terminal over temperature detection
Flexible Adaptability
6 MPPTs, 4 strings per MPPT for precise power
Reliable up to 5000m altitude
Power line communication (PLC) (Optional)*
Buil-in Anti-PID Protection* (Optional)
Assured Safety
IP66 protection degree
AFCI support (optional)
Remote settings and upgrades
24-hour monitoring
Automatic tripping DC switch
Type II SPD on AC&DC side (Optional)
High Efficiency
Up to 99% efficiency
200% PV oversizing
180~1000V, up to 65A per MPPT
Maintains full power up to 50°C, with operation
range from -25°C to +60°C
The SolaX X3-FORTH PLUS is a top-tier three phase string inverter offering up to 99% efficiency and durable performance even in extreme temperatures. This 3 phase string inverter is designed for flexibility, featuring PV oversizing capabilities to maximize your energy generation. It includes advanced safety features such as IP66 protection and optional AFCI, ensuring reliable and secure operation.
The SolaX X3-FORTH PLUS integrates intelligent design functions such as fan self-cleaning to improve long-term performance and reduce maintenance needs. This C&I inverter is ideal for high-altitude installations, providing stable operation even at elevated heights. Additionally, it offers optional PLC and Anti-PID protection, further enhancing its reliability and performance. As a commercial string inverter, the SolaX X3-FORTH PLUS is perfect for large-scale installations, including those requiring a robust 150kW solar inverter.
Choose the SolaX X3-FORTH PLUS for your commercial solar needs and experience unparalleled efficiency, safety, and intelligent design.
| Specifications | X3-FTH-120K-P On-grid Inverter |
| Max. recommended PV array power | 180.0 kWp |
| Max. PV input voltage | 1100 V |
| Nominal PV input voltage | 580 V / 600 V |
| Operating voltage range | 200 ~ 1000 V |
| MPPT voltage range | 180 ~ 1000 V |
| Start-up voltage | 200 V |
| No. of MPP trackers / Strings per MPP tracker | 6 / 4 |
| Max. input current per MPPT | 65 A |
| Max. input short circuit current per MPPT | 82 A |
| Rated output power | 120 kW |
| Rated output current | 181.8 A / 174 A |
| Max. output apparent power | 132 kVA |
| Max. output continuous current | 200.6 A @ 380 V |
| Max. short circuit current | 500 A |
| Nominal AC voltage | 3 / (N) / PE, 220 / 380 V, 230 / 400 V |
| Nominal AC frequency | 50 Hz / 60 Hz |
| AC frequency range | 50 ± 5 Hz / 60 ± 5 Hz |
| Adjustable Power Factor range | ~ 1 (0.8 lagging to 0.8 leading) |
| THDI (rated power) | < 3% |
| Max. efficiency | 98.6% |
| European efficiency | 98.2% |
| Ingress protection | IP66 |
| Operating ambient temperature range | -25 ~ 60°C |
| Max. operating altitude | 5000m (derating above 4000m) |
| Relative humidity | 0 ~ 100% RH (condensing) |
| Overvoltage Category | Mains: III, PV: II |
| Dimensions (W x H x D) | 1082 x 724 x 373 mm |
| Net weight | 99.8 kg |
| Cooling concept | Smart cooling |
| Communication interfaces | RS485, Optional: PLC, Pocket WiFi / LAN / 4G |
| Power consumption (night) | < 10 W |
| Topology | Non-isolated |
| Certificates and approvals | IEC 61727, IEC 62116, VDE4110, VDE4105, EN50459, NRS097, G99, RD1699, PPDS2020, CEI0-21, CEI0-16, VFR 2019 |
| Specifications | X3-FTH-125K-P On-grid Inverter |
| Max. recommended PV array power | 187.5 kWp |
| Max. PV input voltage | 1100 V |
| Nominal PV input voltage | 580 V / 600 V |
| Operating voltage range | 200 ~ 1000 V |
| MPPT voltage range | 180 ~ 1000 V |
| Start-up voltage | 200 V |
| No. of MPP trackers / Strings per MPP tracker | 6 / 4 |
| Max. input current per MPPT | 65 A |
| Max. input short circuit current per MPPT | 82 A |
| Rated output power | 125 kW |
| Rated output current | 189.4 A / 181.2 A |
| Max. output apparent power | 137.5 kVA |
| Max. output continuous current | 209 A @ 380 V |
| Max. short circuit current | 500 A |
| Nominal AC voltage | 3 / (N) / PE, 220 / 380 V, 230 / 400 V |
| Nominal AC frequency | 50 Hz / 60 Hz |
| AC frequency range | 50 ± 5 Hz / 60 ± 5 Hz |
| Adjustable Power Factor range | ~ 1 (0.8 lagging to 0.8 leading) |
| THDI (rated power) | < 3% |
| Max. efficiency | 98.6% |
| European efficiency | 98.2% |
| Ingress protection | IP66 |
| Operating ambient temperature range | -25 ~ 60°C |
| Max. operating altitude | 5000m (derating above 4000m) |
| Relative humidity | 0 ~ 100% RH (condensing) |
| Overvoltage Category | Mains: III, PV: II |
| Dimensions (W x H x D) | 1082 x 724 x 373 mm |
| Net weight | 99.8 kg |
| Cooling concept | Smart cooling |
| Communication interfaces | RS485, Optional: PLC, Pocket WiFi / LAN / 4G |
| Power consumption (night) | < 10 W |
| Topology | Non-isolated |
| Certificates and approvals | IEC 61727, IEC 62116, VDE4110, VDE4105, EN50459, NRS097, G99, RD1699, PPDS2020, CEI0-21, CEI0-16, VFR 2019 |
| Specifications | X3-FTH-136K-P On-grid Inverter |
| Max. recommended PV array power | 204 kWp |
| Max. PV input voltage | 1100 V |
| Nominal PV input voltage | 580 V / 600 V |
| Operating voltage range | 200 ~ 1000 V |
| MPPT voltage range | 180 ~ 1000 V |
| Start-up voltage | 200 V |
| No. of MPP trackers / Strings per MPP tracker | 6 / 4 |
| Max. input current per MPPT | 65 A |
| Max. input short circuit current per MPPT | 82 A |
| Rated output power | 136 kW |
| Rated output current | 206.6 A / 196.3 A |
| Max. output apparent power | 150 kVA |
| Max. output continuous current | 228 A @ 380 V |
| Max. short circuit current | 500 A |
| Nominal AC voltage | 3 / (N) / PE, 220 / 380 V, 230 / 400 V |
| Nominal AC frequency | 50 Hz / 60 Hz |
| AC frequency range | 50 ± 5 Hz / 60 ± 5 Hz |
| Adjustable Power Factor range | ~ 1 (0.8 lagging to 0.8 leading) |
| THDI (rated power) | < 3% |
| Max. efficiency | 98.6% |
| European efficiency | 98.2% |
| Ingress protection | IP66 |
| Operating ambient temperature range | -25 ~ 60°C |
| Max. operating altitude | 5000m (derating above 4000m) |
| Relative humidity | 0 ~ 100% RH (condensing) |
| Overvoltage Category | Mains: III, PV: II |
| Dimensions (W x H x D) | 1082 x 724 x 373 mm |
| Net weight | 99.8 kg |
| Cooling concept | Smart cooling |
| Communication interfaces | RS485, Optional: PLC, Pocket WiFi / LAN / 4G |
| Power consumption (night) | < 10 W |
| Topology | Non-isolated |
| Certificates and approvals | IEC 61727, IEC 62116, VDE4110, VDE4105, EN50459, NRS097, G99, RD1699, PPDS2020, CEI0-21, CEI0-16, VFR 2019 |
| Specifications | X3-FTH-150K-P On-grid Inverter |
| Max. recommended PV array power | 225 kWp |
| Max. PV input voltage | 1100 V |
| Nominal PV input voltage | 580 V / 600 V |
| Operating voltage range | 200 ~ 1000 V |
| MPPT voltage range | 180 ~ 1000 V |
| Start-up voltage | 200 V |
| No. of MPP trackers / Strings per MPP tracker | 6 / 4 |
| Max. input current per MPPT | 65 A |
| Max. input short circuit current per MPPT | 82 A |
| Rated output power | 150 kW |
| Rated output current | 227.3 A / 217.4 A |
| Max. output apparent power | 165 kVA |
| Max. output continuous current | 250.7 A @ 380 V |
| Max. short circuit current | 500 A |
| Nominal AC voltage | 3 / (N) / PE, 220 / 380 V, 230 / 400 V |
| Nominal AC frequency | 50 Hz / 60 Hz |
| AC frequency range | 50 ± 5 Hz / 60 ± 5 Hz |
| Adjustable Power Factor range | ~ 1 (0.8 lagging to 0.8 leading) |
| THDI (rated power) | < 3% |
| Max. efficiency | 98.6% |
| European efficiency | 98.2% |
| Ingress protection | IP66 |
| Operating ambient temperature range | -25 ~ 60°C |
| Max. operating altitude | 5000m (derating above 4000m) |
| Relative humidity | 0 ~ 100% RH (condensing) |
| Overvoltage Category | Mains: III, PV: II |
| Dimensions (W x H x D) | 1082 x 724 x 373 mm |
| Net weight | 99.8 kg |
| Cooling concept | Smart cooling |
| Communication interfaces | RS485, Optional: PLC, Pocket WiFi / LAN / 4G |
| Power consumption (night) | < 10 W |
| Topology | Non-isolated |
| Certificates and approvals | IEC 61727, IEC 62116, VDE4110, VDE4105, EN50459, NRS097, G99, RD1699, PPDS2020, CEI0-21, CEI0-16, VFR 2019 |
