Three phase by Undercurrent – P

Three phase by Undercurrent – P

Suitable where the undercurrent (running wihout load) is critical.

  • Without requiring 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.

WITHOUT LEVEL SENSORS

Model

Motor

Code

Range IB

(A)

Motor 400 V

115 V 230 V

HP

kW

P19

THREE

PHASE

11402 11403 7-19,6 5,5 – 10

4 – 7,5

P44

11422 11423 19-44,2 12,5 – 30 9,3 – 22

P90

11442 11443 40-90,4 30 – 60

22 – 45

  • For IN of the motor below the minimum setting IB pass the cables several times (n) through the holes in the relay IB = n x IN
  • For IN of the motor above the maximum setting IB use 3 CT …/5 and the relay P 19

Some of the most common applications in domestic, industrial and agricultural installations are as follow:

  • Submersible pumps: water supply, irrigation, well dewatering, petrol stations…
  • Surface pumps: sewage treatment plants, swimming pools, pressure sets, fire-fighting equipment…
  • Other typical applications that require monitoring: belt drives, ventilators, conveyor belts…

Protection functions:

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

Specifications