Rishabh Instruments Limited | Rish Relay 252-PVR - Phase Sequence & Phase Failure Relay

Rish Relay 252-PVR - Phase Sequence & Phase Failure Relay

The protector is designed to monitor the correct phase rotation or sequence of 3-phase systems L1, L2, L3. Rotating machines are particularly vulnerable to incorrect phase sequences.

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LED trip indication
2 pole relay contacts
Auto Reset

Product Function

The protector continuously monitors the three-phase supply. With the correct phase sequence applied, the front panel LED will illuminate & the output relay will be energized. An incorrect sequence or missing phase will de-energize the relay, & the LED will be extinguished. If the supply drops below 85% of its nominal voltage, this condition will also cause a trip.

Applications

Portable pumps
Portable compressors
Motor-driven mixing equipment
Motors: Single Phasing
Gensets: correct engine rotation
All portable equipment
All rotating machines
An illuminated LED indicates when the relay is energized.

This relay can be used to protect:

Portable electrical equipment
Incorrect sequence connection
Loss of one phase

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