Based on Ballard's modern FCgen 1020 stack the Nexa 1200 fuel cell system from Heliocentris Energiesysteme provides an output power of 1.2 kW. An innovative system design and the selection of energy efficient peripheral components allow an overall system efficiency of more than 50 %. The fully-integrated module is built flat and has an enclosed, robust housing. Integrated profile rails offer simple mounting options. The optimized form factor enables easy integration in 19" systems. Boasting high service life, the system has tolerant and easily accessible interfaces. A central interface hub at the rear of the system combines all connectors in one place. Communication is via CAN bus.