Inverter – FoxESS – R75
SKU: R75
Product details
R
R is a series of three-phase FOX ESS inverters designed for commercial photovoltaic installations. It includes units with a rated output power of 75–110 kW, depending on the model. The transformerless design, maximum efficiency of 98.6% and PID Recovery function support efficient system operation.
Key advantages of R
- Power 75–110 kW — the series’ rated output power range allows an inverter to be selected to match the required system capacity.
- Maximum efficiency 98.6% and European efficiency of 98.2%.
- PID Recovery function — automatically detects and compensates for losses, preventing further degradation of PV modules.
- Optional PV string current monitoring — enables real-time measurements, performance analysis, and anomaly reporting.
- Installation protection — DC reverse polarity protection, AC overcurrent and short-circuit protection, and type II surge protection on both DC and AC sides; optional AFCI function protects against electric arcs.
- IP66 protection rating and an operating temperature range from -30 to 60°C, with intelligent air cooling.
Who is this a good choice for?
The R series is designed for companies using commercial photovoltaic systems that require a three-phase inverter rated at 75–110 kW. The PID Recovery function helps maintain module performance, while optional PV string current monitoring makes it easier to analyze their operation and detect irregularities.
Datasheet
Datasheet-R75-EN.pdf
| Parameter | R75 | R100 | R110 |
|---|---|---|---|
| DC input data | |||
| Maximum input voltage (V) | 1100 | ||
| Start-up voltage (V) | 250 | ||
| Operating voltage (V) | 600 | ||
| MPPT voltage range at full load (V) | 550 ~ 850 | ||
| MPPT operating voltage range (V DC) | 200 ~ 1000 | ||
| Number of MPPTs | 9/2 | 10/2 | |
| Maximum input current (A) | 26 | ||
| Maximum short-circuit current (A) | 40 | ||
| AC output data | |||
| Rated output power (kW) | 75 | 100 | 110 |
| Maximum apparent power (kVA) | 75*/82,5 | 110 | 121 |
| Maximum output current (A) | 113,7*/119,6 | 166,7 | 175,3 |
| Rated grid voltage (V AC) | 380/400, 3W+N+PE | ||
| AC grid voltage range (V AC) | 320 ~ 460 | ||
| AC grid frequency range (Hz) | 45 ~ 55 / 55 ~ 65 | ||
| Power factor adjustment range | Adjustable from 0.8 capacitive to 0.8 inductive | ||
| Total harmonic current distortion THDi (%) | <3 | ||
| Efficiency | |||
| Maximum efficiency (%) | 98,6 | ||
| European efficiency (%) | 98,2 | ||
| Protection | |||
| DC disconnector | YES | ||
| DC reverse polarity protection | YES | ||
| AC overcurrent protection | YES | ||
| AC short-circuit protection | YES | ||
| Surge protection | DC Type II / AC Type II | ||
| PID recovery function | YES | ||
| Insulation resistance monitoring | YES | ||
| Leakage current monitoring | YES | ||
| AFCI arc fault protection | Optional | ||
| PV string current monitoring | Optional | ||
| Dimensions and weight | |||
| Dimensions (W × H × D) (mm) | 975*630*360 | ||
| Weight (kg) | 90 | ||
| Operating conditions | |||
| Operating temperature range (°C) | -30 ~ 60 | ||
| Cooling | Intelligent Air Cooling | ||
| Working height (m) | 4000 (rated output derating >3000 m) | ||
| Permissible relative humidity range (%) | 0 ~ 100 (non-condensing) | ||
| Degree of protection | IP66 | ||
| General information | |||
| Inverter topology | Transformerless | ||
| Display | LED,Wi-Fi+App | ||
| Communication | RS485 / USB / Wi-Fi+LAN / 4G | ||
| DC connector type | Equivalent to MC4 | ||
| AC connector type | Screw connector | ||
| Standards | |||
| Compliance with standards | IEC 62109, IEC 61727, IEC 62116, IEC 60068, IEC 61683, IEC 61000-6-3, EN 50549 | ||
* Only for the Brazilian market.
Official distribution
