Frequency Inverter Clock frequency: 2...16 kHz Dimensions W x H x D: 73 x 173 x 149 mm Operating temperature: -10...+50 °C Output frequency: 0...650 Hz Input frequency: 47...63 Hz Series: Micromaster 420 Analogue input: 1 Analogue output: 1 Digital input: 3 Protection rating: IP20 Relay output: 1 Operating voltage: 380...480 VAC