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      Minilec Temperature Protection Relay PTC

      Minilec Temperature Protection Relay PTC

      Product Details:


      Product Description

      Minilec Temperature Protection Relay

      OVERVIEW :-

      PTC Thermistors are semi conductor sensors. These have typical characteristics that change their resistance instantly at a specified pre-defined response temperature
      (NRT). As soon as the surrounding temperature of PTC reaches its NRT value the body resistance of PTC Thermistor rises sharply from 200 / 250 Ohms to more than 5000 Ohms.The PTC Thermistors are embedded in the overhang location of the motor windings.

      The NRT value of PTC is selected according to the Insulation Class of the copper windings of motor or transformers.



      Selection Chart for NRT of PTC Thermistors.
      NRT °C Class of Ins. Cable Colour Code
      70 - White - Brown
      80 - White - White
      90 - Green - Green
      100 A Red - Red
      110 - Brown - Brown
      120 E Grey - Grey
      130 B Blue - Blue
      140 - White - Blue
      150 F Black - Black
      160 - Blue - Red
      170 H White - Green
      180 C White - Red
      190 - Orange - Black

      Minilec offers CBCT for our Earth fault relay & Earth Leakage Relay.

      Ordering Information: :
      Primary & Secondary Current.



      Inner Diameter.
      Outer Diameter.
      Minilec Relay Model Name.


      Wherever not specified Contact Rating : 5A @ 230 V AC (resistive)

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