... low noise, energy saving, high torque output at low frequency Inverter. AC Frequency Inverter(new) HPI6002(0.4KW-30KW) All plastic molding ... Quality Certification Centre 2010010304400490 Soft Starter, HPS2DN-300, HPS2DN-370, HPS2DN-470, HPS2DN-570, HPS2DN-720, HPS2DN-840; ... Quality Certification Centre 2010010304400495 Soft Starter, HPS2D-300, HPS2D-370, HPS2D-470, HPS2D-570, HPS2D-720, HPS2D-840; ...