Model: MD7UV3

>    Function: Overvoltage monitoring

>    Power supply: 24-240V AC/DC  

>    Monitoring channel: V1/V2/V3-C (15-150V, 30-300V, 60-600V AC/DC)

>    Relay output: 2 c/o

>    Switching capacity: 8A, 250V AC

Panel caption:  

PW: power supply indication, R: relay status indication, >U: overvoltage threshold setting (10%-100%), Hys. : hysteresis setting (5%-50%)

MD7UV3 specification

Relevant models: MD7UV1: V1/V2/V3-C (0.05-0.5V, 0.3-3V, 0.5-5V AC/DC), MD7UV2: V1/V2/V3-C (1-10V, 5-50V, 10-100V AC/DC)