The HDMS series single-phase motor soft-starter is suitable for systems used in areas with weak power grids. Its design and control algorithm eliminate the need for a traditional start capacitor, effectively increasing reliability. This same control strategy allows it to start capacitor start/capacitor run (CSCR) motors easily and in the case of permanent split capacitor (PSC) motors almost eliminate the starting current. According to the company, it offers as much as 70% current reduction when compared to direct on-line (DOL) starters, which makes the starter the fitting choice for applications such as heat pumps, submersible pumps or other scroll compressor loads connected to generators or electrical inverters.
