According to the Delta Electronics, the second-generation model offers the same output as its predecessor and a peak efficiency of 99.1 per cent, but at 71.5 decibels, it operates much more quietly.
It is suitable for input voltages between 860 and 1,500 volts DC with short-term voltage peaks of 1,600 volts. Up to 20 strings can be connected via connectors. The maximum efficiency of 99.1 per cent ensures high yields.
See also: Inverter for ground-mounted and commercial-scale rooftop installations
Since the new inverter can accept higher input voltages, the current intensity is reduced. For installers, this means a smaller cable cross-section and thus less energy loss.
The cooling system combines natural flow with noise-reduced active ventilation. The M125HV Gen2 has IP65 protection and uses type 2 surge protectors on the input and output sides. The elimination of electrolytic capacitors also extends the service life of the unit. (mfo)
Also interesting: Increasing significance of string inverters
