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Phase monitoring system
TF1 type

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Control relay for sequence/phase fault.
Setting of percentage of imbalance/symmetry.
Three phase 400 V.
Can be plugged into an 11-pin connection socket.
Supervision of the order, asymmetry and presence of voltage on the three phases of a three phase circuit, from the power supply network.
Setting potentiometer on front.
See this product in our catalogue
Signals: VOLTAGE, OUTPUT (ACTIVE RELAY).
Power supply voltage : 230 or 400 VAC - 50/60 Hz Three phase.
Adjustable from: 5 to 25%.
Power consumption: 2,4 VA.
Voltage tolerance: +10% -20%.
Operating temperature: -10° +60° C.
Max. cross section at terminal strip: 2.5 mm².
Outputs load capacity

  • AC1 :10 A / 250 Vac - AC11 : 2,5 A / 230 Vac.
  • DC1 : 1 A / 250 Vdc - DC11 : 5 A / 24 Vdc.


Approx. weight: 140 g. (200 g. incl. Connections socket.).

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