GD20 series inverters feature excellent drive and control performance for using of sensorless vector control technology, and improve usability and reliability for the enriched hardware configurations and software functions, meeting different industrial applications. GD20 series 18.5KW~110KW comes standard with built-in DC reactor, 18.5~37KW built-in standard brake unit, 45~110KW optional built-in brake unit, full range of independent air duct design, which improves product reliability and performance, and enhances product competitiveness.