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 All Categories    Non-self-resetting Thermal Protector Series 01-Type P1-Version SP1, KP1, CP1
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Non-self-resetting Thermal Protector Series 01-Type P1-Version SP1, KP1, CP1

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Application: Non-self-resetting Thermal-Protector (TP) with normally closed contacts are utilised for overheating protection of all kinds of electric equipment or devices, for example motors and transformers. They are applied, where protection against overheating is required and where an automatic reset of the device after overheating and subsequent cooling is not permitted or desired.

Design: The Thermal-Protector Type P1 are based on the well proven mechanism of Thermik’s product Series 01. The PTC heating resistor RH, parallel to the contact, effects an electrically operated self locking mechanism.
Versions :
  • SP1 - with insulation cap
  • KP1 - with shorter insulation cap than SP1
  • CP1 - without insulation cap

    Operation: If, in case of overheating, the rated switching temperature of the bimetallic disc is reached, this suddenly snaps over and opens the contact. When the contact is open, the heating resistor RH is activated and prevents the temperature to fall below the reset temperature of the bimetallic disc. Only after switching off the operating voltage and after a relative short cooling phase the bimetallic disc resets to close the contact.



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      Results 1 - 3 of 3 1 

    Item #

    Item Name

    Diameter d

    Height h

    Lengths of Insulation Cap Imax

    Contact Type

    Nominal Switching Temperature

    Switch Insulation

    SP1 Type P1 Non-self-resetting Thermal Protector with Insulation Cap 9.4 mm 5.2 mm 17 mm Normally Closed (NC) 70 - 180 ºC insulation cap Mylar®-Nomex®
    KP1 Type P1 Non-self-resetting Thermal Protector with shorter Insulation Cap than SP1 N/A N/A N/A Normally Closed (NC) 70 - 180 ºC insulation cap Mylar®-Nomex®
    CP1 Type P1 Non-self-resetting Thermal Protector without Insulation Cap 9.0 mm 4.8 mm N/A Normally Closed (NC) 70 - 180 ºC N/A
      Results 1 - 3 of 3 1