Description
Supervisory relays
The monitoring relays are intended for use in automation and control systems to control the asymmetry, phase direction and activation of contactor contacts in three-phase networks.
- presence and phase direction monitoring relays
- designed to control voltage 1x230V AC / DC and 3 × 230 / 400V AC
- changeover contact 1x8A
- adjustment of the asymmetry threshold and delay times
- measurement of the actual RMS voltage True RMS
- window and undervoltage functions
- resistance monitoring relays for PTC sensors
