... approval 3. ISO9001-2008 4. LCD keypad EM300A Vector Control Inverter3-phase 380V+/-20%, 0.75-400 kW ... customized)Technical specificationControl mode: OLV, CLV, V/F, Frequency width: 0.01-600.00HzDigital channels: 8 inputs, ... ( AVR)Built-in braking chopper for standard inverter 0.75-15kw 3 separate AC chokes on ... input side of standard inverter 90-400kw More than 9 error protections ...