P - Three-Phase Pump Protection Relay, without Level Sensors

The great advantage of the P Relay is that, without requiring any external detectors such as level electrodes, it monitors the load of the motor and stops it before an expensive breakdown occurs. Ex. when a water well is dry, the relay stops the motor by undercurrent without the need of a level sensor.

Features

• Suitable where the undercurrent (running without load) is critical.
• Does not require level sensors to detect dry running.
• For three phase motors from 1 to 630 A and over*.
• Cable feed through.
• Precise motor heating and memory, reproduces its thermal image.
• Visual indication of tripping cause.
• Manual, remote and automatic reset.

Applications

• Some typical applications in Residential, industrial, and agricultural installations as follow:
• Submersible pumps: water supply, irrigation, well dewatering, petrol stations…
• Surface pumps: sewage treatment plants, swimming pools, pressure sets, fire-fighting equipment, ...
• Other applications where it is critical to avoid operation at no load: belt drives, ventilators, conveyor belts…

Protection functions

• Overload.
• Undercurrent.
• Phase imbalance or phase loss.
• Phase sequence.

External Display Module (OD-P)

This optional display module is to be mounted externally, on the panel door or a draw-out unit in a motor control centre (MCC).

• LEDs indicate cause of the trip cause.
• Reset push button (Ø22 mm, 7/8”).
• Easy to install.
• Connects to the relay by the module’s flat cable (2 m , 6.5 ft).
• Suitable for motor control centres (MCC) and panel boards.
• Weight: 0.05 kg / 2 oz.
• Protection degree: IP50.

* Fanox offers a wide selection of current transformers for higher current levels.

https://www.fanox.com/products/pumps-protection-and-control/pump-protection-relays/p/

Choose from the table below the P model that fits your motor-pump. Fanox offers a wide selection of current transformers for higher current levels.