... ) leading manufacturer 2) multi-function,high torque 3) accurate,stable,vector control 4) CE, SGS, ISO9001 AC drive1. SY-6600 220V single ... phase ac drive, frequency inverter, ac inverter, frequency converter, variable frequency drive..2. Features:Ac drive ... Dyeing. Cable. Washing. Water supply. Heating.. Sanyu SY6600 0.4~2.2kw economical energy saving AC drive