Fox Ess P3-Pro-20.0

Item number: C00614

Guarantee: 10 years

The Fox ESS P3-Pro-20.0 is a high-performance, three-phase hybrid inverter designed for commercial and industrial energy storage systems.
The P3-Pro series is Fox ESS's latest development, integrating solar energy generation, battery energy storage, and grid feed-in into a single intelligent system.
The inverter is ideal for larger PV systems where stable, efficient, and reliable energy management is a basic requirement.

Main features

• Nominal AC power: 20,000 VA
• Maximum apparent AC power: 24,000 VA
• Maximum PV power: 40,000 W
• Maximum DC voltage: 1,000 V
• Recommended DC power: 35,000 W
• MPP voltage range: 230 – 850 V
• MPP voltage range at full load: 270 – 790 V
• Number of MPP followers: 3
• Number of strings per MPPT: 2
• Maximum input current per MPPT: 45.5 A
• Short-circuit current per MPPT: 53 A
• Starting voltage: 280 V
  

Batteries and energy storage

• Battery type: Lithium-ion (LiFePO₄)
• Battery voltage range: 150–800 V
• Voltage required for full load: 750 V
• Maximum charging and discharging current: 50 A + 50 A
• Maximum battery charging/discharging power: 30 kW
• Number of battery inputs: 2
• Communication interface: CAN
  
  

AC page

• Nominal mains voltage: 400/230 V or 380/220 V (3L/N/PE)
• Nominal mains frequency: 50/60 Hz (±5%)
• Nominal AC current per phase: 30.3 A
• Maximum AC current per phase: 33.3 A
• Power factor: 0.8–1.0 (adjustable in leading/lagging direction)
• THDI: <3% névleges terhelésnél
• Parallel operation: up to 10 units can be connected
  
  

Efficiency and performance

• Maximum efficiency: 97.2%
• European efficiency: 96.3%
• MPPT efficiency: 99.9%
• PV → AC efficiency: 98.1%
• Battery → AC efficiency: 97.2%
  
  

EPS (emergency power supply) function

• EPS nominal power: 20,000 VA
• Peak power (60 s): 22,000 VA
• EPS output voltage: 400/230 V, 50/60 Hz
• Maximum EPS current per phase: 30.3 A
• Switching time in case of network failure: ≤10 ms
• THDV: <10%
  
  

Protection functions

• PV and battery reverse polarity protection
• Anti-islanding protection
• Output short circuit, overcurrent and overheating protection
• Ground fault and insulation fault detection
• Overvoltage and undervoltage protection
• Surge protection: Type II (DC and AC side)
• AFCI protection: optional
• Built-in DC switch
• String monitoring function
  
  

Communication and intelligent control

• Interfaces: RS485, CAN, Ethernet, WiFi, 4G (optional), USB, DRM, BMS
• Monitoring: FoxCloud V2.0 (web and mobile application)
• Control interface: capacitive touch buttons
• Audible signal: built-in buzzer
• Meter and data log function: built-in
  
  

Environmental and physical characteristics

• Protection: IP65 (suitable for outdoor use)
• Cooling: Smart Fan Cooling
• Zajszint: <45 dB
• Operating temperature: -25 °C to +60 °C (derating above 45 °C)
• Storage temperature: -40 °C to +70 °C
• Relative humidity: 0–95%, non-condensing
• Installation altitude: ≤4000 m
• Protection class: I (AC side: III; DC side: II)
• Design: wall-mounted
• Dimensions: 600 × 560 × 225 mm
• Weight: 53 kg
  
  

Certificates and standards

• Safety standards: EN 62109-1, EN 62109-2
• EMC standards: IEC 61000-6-2, IEC 61000-6-3
• Certificate of conformity: CE
• Protection category: OVC III (AC side), OVC II (DC side)
  
  

Key benefits

• Three MPPT inputs, each with 10 kW PV capacity
• Dual battery input, up to 30 kW charging/discharging power
• High-voltage LiFePO₄ battery compatibility
• 99.9% MPPT and 97.2% inverter efficiency
• Advanced communication and remote monitoring on the FoxCloud system
• Robust, IP65 housing for outdoor installation
• Plug-and-play design, quick installation
• Integrated EPS function for uninterrupted power supply