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Thermal switch make T'key,4key, T?key ?

Discussion in 'Electronic Repair' started by N Cook, May 9, 2007.

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  1. N Cook

    N Cook Guest

    Bimetal dome, snap action, switch .
    Anyone recognise the manufacturer, Google has failed for this one? other
    than another failed usenet enquiry
    Marked T220 is probably the temperature but is it centigrade or fahrenheit?
    and 10 amp /250V or 15A/120 V
    Other markings
    C1-2026 ?
    125-a15 ?
    07A15 ?
    not too clear ink-jetted markings
     
  2. N Cook

    N Cook Guest


    looking under a low power microscope the logo is probably
    T'-key with the ' over the - symbol
    did find some images though
    http://mysite.verizon.net/vze1otp1/Ebay/122fthermalswitch1.jpg
    http://mysite.verizon.net/vze1otp1/Ebay/122fthermalswitch3.jpg
    on
    http://item.express.ebay.com/Industrial-Supplies_Electrical-Automation_Autom
    ation-Components_Brand-New-Thermal-Switch-122-F-N-C-Low-S-H_W0QQitemZ2300109
    81134QQihZ013QQptdnZAutomationQ20ComponentsQQddnZIndustrialQ20SuppliesQQadnZ
    ElectricalQ20Q26Q20AutomationQQptdiZ677QQddiZ1462QQadiZ1451QQcmdZExpressItem

    those are also mould marked T220, but those are apparently 122F
     
  3. N Cook

    N Cook Guest


    looking under a low power microscope the logo is probably
    T'-key with the ' over the - symbol
    did find some images though
    http://mysite.verizon.net/vze1otp1/Ebay/122fthermalswitch1.jpg
    http://mysite.verizon.net/vze1otp1/Ebay/122fthermalswitch3.jpg
    on
    http://item.express.ebay.com/Industrial-Supplies_Electrical-Automation_Autom
    ation-Components_Brand-New-Thermal-Switch-122-F-N-C-Low-S-H_W0QQitemZ2300109
    81134QQihZ013QQptdnZAutomationQ20ComponentsQQddnZIndustrialQ20SuppliesQQadnZ
    ElectricalQ20Q26Q20AutomationQQptdiZ677QQddiZ1462QQadiZ1451QQcmdZExpressItem

    those are also mould marked T220, but those are apparently 122F
     
  4. N Cook

    N Cook Guest


    Ebay is useful sometimes
    I've not found any T'-key company site but with those Ebay ones being 122F
    with product code 050-15 and 50C = 122F , then
    The one I have the middle code is 125-?15 so probably 125 degrees C = 257F.
    The top code is probably date and the bottom one a batch number
    This one I took to 120 degree C without it changing state.
    For the archives, no replies now necessary.
     
  5. Gary Tait

    Gary Tait Guest

    The T220 is probably the model. The temperature would be one of the
    inkjetted values. I'd thimk maybe 125 centigrade.
    What is this from?
     
  6. N Cook

    N Cook Guest

    My conclusions on this one on
    http://www.divdev.fsnet.co.uk/tips.htm
    for more permanence than usenet
     
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