Rishabh Instruments Limited
Rish Relay 252-Pxx - Mili-Volt / Thermo-couple Relay

Rish Relay 252-Pxx - Mili-Volt / Thermo-couple Relay

The Protector trip accepts DC Millivolt inputs from transducers or shunts or from any standard thermocouple. The Relay offers user adjustable trip point ( Set point ) and time delay settings. The typically 0 to 10 seconds, although longer delays are available.

  • Adjustable setpoint
  • Adjustable Time delay
  • Internal differential ( factory Settable )
  • LED trip indication
  • 2 pole relay contacts
  • Energize/De-energize function swapping
  • Supports all industry standard shunts and popular thermocouples
  • Auto Reset

Product Function

‘Over’ Models: When the monitored voltage exceeds the setpoint, the time delay is started. When the time has elapsed, the relay will energize and the red LED will illuminate to indicate the trip condition. The relay will automatically reset once the monitored voltage falls below the setpoint minus the differential. When reset, the LED will extinguish, and the relay de-energises. The time delay is not active when resetting.

‘Under’ Models: When the monitored voltage falls below the setpoint, the time delay is started. When the time has elapsed, the relay will de-energize and the LED will extinguish to indicate the trip condition. The relay will automatically reset once the monitored voltage rises above the setpoint plus the differential. When reset, the LED will illuminate and the relay energizes. The time delay is not active when resetting.

Applications

Application Using Current Shunts

Use with current shunts to monitor battery charging current

Monitor Current drain

Under / Over Current

Application Using thermo - couples

Under / over temperature

Detect hotspots

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