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FoxESS R100 String Inverter 100 kW Three-Phase 9 MPPT
The FoxESS R100 is a 100 kW three-phase string inverter from the R series, built for commercial and industrial grid-connected solar plants. Its nine independent MPP trackers, each with two inputs, cover a 200-1000 V window and accept up to 1100 V on the DC side — enough to run eighteen strings separately across roof planes facing different directions.
Apparent power reaches 110 kVA, with a maximum output current of 166.7 A on a 380/400 V grid. Peak efficiency is 98.6% and European efficiency 98.2%. Power factor is adjustable from 0.8 leading to 0.8 lagging, so the inverter can be set to whatever the network operator requires.
An IP66 enclosure and intelligent air cooling allow outdoor installation from -30 to +60 °C. A DC switch, type II surge arresters on both DC and AC sides, PID recovery, insulation monitoring and residual current detection come as standard; AFCI and string current monitoring are available as options. Supervision runs over RS485, USB, Wi-Fi, LAN or 4G through the FoxESS Cloud portal.
Highlights
Technical specifications
| Feature | Value |
|---|---|
| Product code | R100 |
| Series | FoxESS R (commercial and industrial grid-tie) |
| Rated AC power | 100000 W |
| Max apparent power | 110000 VA |
| Max AC current | 166.7 A |
| Max PV voltage | 1100 V |
| Start-up voltage | 250 V |
| Rated DC voltage | 600 V |
| MPPT range | 200-1000 V |
| Number of MPP trackers | 9 |
| Inputs per tracker | 2 |
| Grid connection | Three-phase 3W + N + PE |
| Grid voltage | 380 / 400 V |
| Grid frequency | 50 / 60 Hz |
| Power factor | adjustable from 0.8 leading to 0.8 lagging |
| Peak efficiency | 98.6 % |
| European efficiency | 98.2 % |
| DC switch | Yes |
| AFCI protection | Optional |
| String current monitoring | Optional |
| Surge arresters | DC type II / AC type II |
| Protection degree | IP66 |
| Cooling | Smart air cooling |
| Display | LED, app and FoxESS Cloud portal |
| Communication | RS485, USB, Wi-Fi, LAN, 4G |
| DC connectors | MC4 type |
| AC connection | ring terminals |
| Operating temperature | -30 ~ +60 °C |
| Altitude | up to 4000 m (derating above 3000 m) |
| Dimensions (W×H×D) | 975 × 630 × 360 mm |
| Weight | 90 kg |
Documentation
PDFFoxESS R series datasheetManufacturer's official documentString sizing must respect the voltage and current limits of the nine MPP trackers and the electrical design of the plant. Installation and grid connection must be carried out by qualified personnel in accordance with the applicable standards.