Delta RPI M20A Flex - The Powerhouse for Large PV Systems
The Delta RPI M20A Flex represents the pinnacle of the Delta Flex series and is a highly efficient three-phase solar inverter for residential and commercial photovoltaic systems with higher power requirements. With a rated apparent power of 20 kVA and an outstanding peak efficiency of 98.5%, it ranks among the most efficient devices in its class.
Maximum Efficiency of 98.5% for Highest Yields
With an EU efficiency of 98.1%, the Delta RPI M20A Flex converts the generated solar power with particularly low losses. With an input voltage range from 200 to 1000 volts DC and an optimal MPP range from 460 to 900 volts, it consistently delivers maximum active power. The low standby consumption of less than 2 watts during night operation minimizes parasitic losses.
Full Power Up to 50°C Ambient Temperature
A particular strength of the Delta RPI M20A Flex is its stable performance at high temperatures. Up to 50°C ambient temperature, it operates without any power derating - a decisive advantage for systems in warm climates or unfavorable mounting situations. Natural convection cooling ensures whisper-quiet operation.
Two MPP Trackers with 22 kW Total Capacity
The two independent MPP trackers of the Delta RPI M20A Flex each process up to 26 A input current and can be equipped with two module strings each. The maximum apparent power of 22 kVA and output current of 32 A enable generous oversizing of PV generator power for maximized yields during morning and evening hours.
Comprehensive Surge Protection Already Integrated
The Delta RPI M20A Flex is equipped with replaceable Type 2 surge arresters on both DC and AC sides. This integrated protection according to EN 50539-11 and EN 61463-11 secures the entire system against overvoltage events and simplifies installation as separate protection components are eliminated.
Professional Monitoring via Wi-Fi and Cloud
Commissioning and monitoring is conveniently done via the DeltaSolar smartphone app through integrated Wi-Fi. The MyDeltaSolar Cloud offers professional remote monitoring with detailed data visualization. Two RS485 interfaces, potential-free contacts, and six digital inputs enable integration into higher-level monitoring systems.
Robust Construction for Demanding Locations
With IP66 protection rating and mechanical DC disconnect switch, the Delta RPI M20A Flex is designed for permanent outdoor installation. The maximum operating altitude of 4,000 meters extends the application spectrum to alpine regions. The 5-year manufacturer warranty can be extended upon request.
The Delta RPI M20A Flex at a Glance:
