Rish Relay 252-PAx - AC Current Relay
The AC Current provides continuous surveillance of the monitored circuit. When the measured current moves outside the set point limit, the relay will operate. An adjustable time delay is provided to prevent the relay from tripping for a predetermined period to prevent nuisance tripping.
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- Adjustable setpoint
- Adjustable time delay
- Internal differential ( factory Settable )
- LED trip indication
- 2 pole relay contacts
- Energize/De-energize function swapping
- Auto Reset
1. Over Current models: When the monitored current exceeds the setpoint, the relay will energize and the red LED will illuminate to indicate the trip condition. The relay will automatically reset once the monitored current falls below the setpoint minus the differential. When reset, the LED will extinguish, and the relay de-energises.
2. Under Current models: When the monitored current falls below the set point, the relay will de-energize and the red LED will extinguish to indicate the trip condition. The relay will automatically reset once the monitored current rises above the set point plus the differential. When reset, the LED will illuminate and the relay energizes.
3. On request, any product can be manufactured with the energize/de-energize functions swapped. The combined under/over trip unit is supplied with two independent high and low set point relays.
4. Single-phase & three-phase products are available. Three-phase products monitor the current level for each phase and are not phase sequence sensitive.
Applications
- Over current
- Under current
- Load detection
- Monitoring of electric heating systems
- General application - for any electrical load, monitoring for under-load and over-load conditions
- Motors - monitoring for conditions such as overload, locked rotor, and short circuit.
- Gensets - to ensure load current is within generator capacity.
- Machinery - detecting broken drive belts on machinery.
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Rish Relay 252-PAx - AC Current Relay
The AC Current provides continuous surveillance of the monitored circuit. When the measured current moves outside the set point limit, the relay will operate. An adjustable time delay is provided to prevent the relay from tripping for a predetermined period to prevent nuisance tripping.
