http://www.ebay.com/itm/KSD301-Tempe...item2a09955a3a
Can I use this type of 220 volt AC bi-metal temperature switch, to switch 12 volts DC?
For my air/water intercooler project I want to switch the coolant fan on at about 100F or thereabouts.
And, of course, all the standard automotive fan switch thermocouples remain open until about 180F at the lowest.
From the ebay ad -
Spec:
- Bimetal disc thermostat, it can screw on to any metal surface
- Type: N.O. (Normal Open)
- It is open until the surface reaches 45 Celsius degree and then the switch closes. automatically reset
- When the surface cools off about 5 degrees, the switch automatic opens
- Voltage: 110V AC TO 250V AC
- Circuit resistance: 50 Mohm
- Insulation resistance: 100 Mohm
- Withstand voltage: 1500V AC/minute
- Opening-closing durability: 10000 times or more (under rated load)
- General-purpose low cost, compact, large capacity, minute current thermostat
- Application: For Household electric appliances, PC, Microwave ovens, Irons, Refrigerators, Electronic oven, heating unit, coffeepot, water heater, etc.