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

[N Cook]

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

 

[N Cook]

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

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

 

[N Cook]

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

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

 

[N Cook]

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

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.

 

[Gary Tait]

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

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?

 

[N Cook]

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?

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