Found 2 products about

relay valve

ZHRV3-07 Voltage control relay

ZHRV3-07 Voltage control relay

Measuring frequency 45Hz~65Hz, knob setting . LED indicator shows working status.

ZHRV3-09 Voltage control relay

ZHRV3-09 Voltage control relay

Measuring frequency 45Hz~65Hz, knob setting . LED indicator shows working status.