Press release BoxID: 714516 (Delta Electronics (Netherlands) B.V.)
  • Delta Electronics (Netherlands) B.V.
  • Tscheulinstr. 21
  • 79331 Teningen
  • Contact person
  • Andreas Schmidt
  • +49 (7641) 455-252

Delta’s new powerfully compact 50 kVA string inverters are now shipping

Delta, the leading global provider of power and thermal management solutions, is proud to announce that its new flagship inverter, the RPI M50A, is now available for customers in Europe.

(PresseBox) (Teningen, ) The M50A is designed for use in large to very large scale commercial PV systems and features world leading power density-to-size ratio in the 50 kVA inverter class (397 kW/m3 or 6.5 watts/in3). Therefore, it is much more compact than many other inverters in the 30 to 50 kVA power class.

Replaceable AC and DC-side type 2 surge protection devices (SPDs) as well as string fuses are already integrated into the inverter. The AC connector together with the MC4 DC connectors ship standard with the inverter. These smart features will not only simplify installation planning but also save up to 40% on system accessories and as a result signficantly reduce installation costs.

The inverter features a very high maximum efficiency of 98.6 % and dual MPP trackers that ensure the PV plant owner will get the maximum yield possible from the PV system.

For the system planner, maximum flexibility is ensured thanks to a wide input voltage range of 200 – 1000 V and the dual MPP trackers. Furthermore, the M50A also supports symmetrical and asymmetrical loading of the DC inputs (60/40 %) which can increase yield in such applications as east/west roof installations, where modules are orientated in different directions.

The M50A is easily installed with a wall mount bracket that follows a similar installation concept as with the Delta SOLIVIA TL-series inverters. A bracket is attached with screws onto a wall surface or metal frame and the inverter is simply hung onto the bracket. The light weight of 74 kg in its performance class also simplifies the installation of the M50A.

As with all the Delta inverters, the new RPI M50A is compatible with major types of PV modules and features a robust weatherproof IP65 rated enclosure providing solid performance for many years in outdoor installations, even in harsh climates. The M50A is also compatible with major professional monitoring systems as well as SOLIVIA Monitor, Delta’s own PV system monitoring solution.

M50A product page is at:

Delta Electronics (Netherlands) B.V.

Delta Group, founded in 1971, is the global leader in power and thermal management solutions. Our mission statement, “To provide innovative, clean and energy-efficient solutions for a better tomorrow,” focuses our role in addressing key environmental issues such as global climate change. As an energy-saving solutions provider, Delta's businesses encompass power electronics, energy management, and smart green life. Delta has sales offices worldwide and manufacturing facilities in Taiwan, China, USA, Europe, Thailand, Japan, Singapore, India, Mexico and Brazil.

Throughout its history, Delta Group has received many global awards and recognition for its business milestones, innovative technology and corporate social responsibility. Since 2011, Delta has been selected as a member of the prestigious Dow Jones Sustainability™ World Index (DJSI World) for 3 consecutive years. In 2013 it was also included in the DJSI Emerging Markets Index and ranked first in six criteria among DJSI’s World-leading Electronic Equipment, Instrument and Component Companies segment.