Description
125kW 3-phase string inverter with 12 MPPT from SolaX Power’s X3-FORTH range is a commercial-grade, on-grid inverter built for large solar installations across the UK — from industrial rooftops to ground-mount commercial arrays. Rated for 125kVA output and supporting up to 188kWp of recommended PV array capacity, it gives installers the headroom to design ambitious commercial systems without hitting inverter bottlenecks.
Twelve independent MPP trackers, each with 2 strings, span a wide 180–1000VDC voltage range and handle up to 32A of DC input current per tracker. That level of granular MPPT control means this 125kW 3-phase string inverter with 12 MPPT can handle complex, multi-orientation commercial roofs — east/west splits, partial shading, mixed panel strings — while still extracting maximum yield from every array section. Support for up to 150% PV oversizing and 110% AC output overloading gives further flexibility to maximize DC-side capacity relative to the inverter’s AC rating.
This unit comes WiFi-enabled out of the box, allowing installers and site managers to remotely monitor performance, diagnose faults, and push firmware updates without a site visit. Conversion efficiency reaches up to 98.6%, keeping losses low across the entire generation-to-grid pathway, while smart air cooling and I-V curve diagnostics support long-term reliability and fast troubleshooting on commercial deployments.
Built to the IP66 protection standard for outdoor and semi-industrial environments, the inverter includes Type II surge protection on both DC and AC sides, optional AFCI arc-fault detection, and continuous string-level and AC terminal monitoring — giving UK installers confidence in both performance and safety compliance across large-scale commercial solar projects.
Key Features
- 125kVA rated output / up to 188kWp PV input — sized for large UK commercial solar projects
- 12 MPP trackers, 2 strings per tracker — 180–1000VDC range, up to 32A per tracker
- WiFi monitoring included — remote performance tracking and firmware updates
- Up to 98.6% conversion efficiency — minimal energy loss at commercial scale
- 150% PV oversizing / 110% output overloading — flexible design headroom for complex arrays
- I-V curve diagnostics — fast string-level fault identification
- Smart air cooling — extends component life under continuous commercial load
- IP66 protection rating — rated for outdoor/semi-industrial UK installations
- Optional AFCI arc-fault protection — added fire safety for large systems
- Type II SPD (DC & AC) — robust lightning/surge protection
- Continuous monitoring — string current & AC terminal temperature detection
- Compact, lightweight design — easier transport and mounting on commercial sites
Technical Data Table
