Fixon Flex 12kW PV-18000 Single Phase Hybrid Solar Inverter

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Fixon FLEX 12kW Single Phase Hybrid Solar Inverter – PV-18000 (FXN-12KW-FLX12)

The Fixon FLEX 12kW is a single-phase 48V hybrid solar inverter designed for large homes and businesses that need high power output with reliable backup. It has 3 MPPT trackers and accepts up to 18,000W of solar panel power, so you can install more panels than the inverter’s rated output. It works with lithium-ion and lead-acid batteries, has a generator input, and has a second output (OUT2) for smart load management. The IP66 rating means it is dust-tight and protected against strong water jets. It comes with a 5-year warranty.

Key Features

• 12kW rated output, 48V, single phase
• 18,000W maximum PV input (24kWp recommended array size)
• 3 MPPT trackers with 2 strings each
• Up to 27A input current per MPPT
• Works with lithium-ion and lead-acid batteries
• 250A maximum charge and discharge current
• Generator input
• OUT2 smart load management
• Overload capacity of 2 times rated power for 10 seconds in off-grid mode
• Parallel connection
• Typical switch time of 4ms
• Touch screen display with LCD and app monitoring
• Type II surge protection on both DC and AC sides
• Optional AFCI arc fault protection
• IP66 protection
• 5-year warranty

Specifications

• Brand: Fixon
• Series: FLEX
• Model: FXN-12KW-FLX12 (PV-18000)
• Type: Hybrid inverter, single phase (L+N+PE)
• Rated AC Power: 12000W
• Maximum AC Apparent Power: 13200VA
• Peak Apparent Power (off-grid): 2 times rated power for 10 seconds
• Maximum PV Input Power: 18000W
• Recommended Maximum PV Array Size: 24000Wp
• Number of MPPT Trackers: 3 (2 strings each)
• Maximum Input Current per MPPT: 27A
• Maximum Short Circuit Current per MPPT: 44A
• MPPT Operating Voltage Range: 120V to 425V
• MPPT Voltage Range (full load): 150V to 500V
• Maximum Input Voltage: 500V
• Start-up Voltage: 120V
• Rated Input Voltage: 370V
• Battery Type: Lead-acid or lithium-ion
• Rated Battery Voltage: 48V (40V to 60V range)
• Maximum Charge/Discharge Current: 250A
• Maximum Charge/Discharge Power: 12000W
• Number of Battery Inputs: 2 (in parallel)
• Battery Communication: CAN / RS485
• AC Voltage: 220/230/240V
• Rated AC Current: 54.6A (220V) / 52.2A (230V) / 50A (240V)
• Maximum AC Current: 57.4A
• Maximum Continuous AC Passthrough: 60A
• Frequency: 50Hz (45 to 55Hz) / 60Hz (55 to 65Hz)
• Power Factor: 0.8 leading to 0.8 lagging
• Total Harmonic Distortion (THDi): Less than 3 percent
• Switch Time (typical): 4ms
• Maximum Efficiency: 97.6 percent
• European Efficiency: 96.5 percent
• MPPT Efficiency: Above 99.9 percent
• Protection: PV reverse polarity, anti-islanding, output short circuit, ground fault monitoring, insulation resistance monitoring, overcurrent, overtemperature, residual current monitoring, grid monitoring, DC switch
• Surge Protection: Type II (DC), Type II (AC)
• Dimensions (W x H x D): 420 x 680 x 252.5 mm (excluding connectors)
• Weight: 37kg
• Topology: Non-isolated
• Cooling: Intelligent air cooling
• Noise: Less than 45dB
• Protection Rating: IP66
• Operating Temperature: -40°C to +60°C (derating above 45°C)
• Storage Temperature: -45°C to +85°C
• Humidity: 0 to 100 percent
• Maximum Altitude: 2000m
• Display: LCD and app
• Communication: RS485, CAN, Bluetooth, WiFi, LAN, 4G, GPRS (optional)
• PV Connector: MC4 compatible