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Working Principle
When the electrical appliance works normally, the bimetallic sheet is in the free state and the contact is in the closed / open state. When the temperature reaches the operating temperature, the contact is opened / closed, and the circuit is cut / closed, so as to control the temperature. When the electric appliance cools to the reset temperature, the contact will automatically close / open and return to the normal working state.
Advantage
Thermal switch has the characteristics of stable performance, high precision, small volume, light weight, high reliability, long service life and small radio interference.
Easy to Installation
The flange on the switch is float and easy to installation.
Please Note
1.Do not collapse, loosen or deform the top of cover surface during installation to avoid affecting performance.
2.Do not allow liquid to penetrate into the interior of the thermostat or crack the housing.
3.The thermostat should be stored in a warehouse with RH less than 90% and ambient temperature less than 40 ℃, which is ventilated, clean, dry.
KSD301 Thermostat N.C/N.O Adjust Snap Disc Limit Control Switch Thermal Switch 2pcs/5pcs
Features
Action Type: N.C/N.O
Rated Voltage/Current : 250V/10A
Pin Width : 6.3mm/0.25inch
Contact Life: More than 50,000 times (action times)
Electrical Strength: AC50Hz, 2000V/min no breakdown and arc phenomenon
KSD301 Thermostat N.C&N.O Kit
Charles Driscoll
2025-08-02 14:30:43
Used this to coat steel fin arrangements added to my gas furnace flu.
Bill
2025-06-18 10:38:27
Used it to replace the broken fan switch on my coal stove
Gary Fewins
2025-05-27 20:14:17
I get most all my electronics from Amazon, can not find the things like this here anymore.I repaired an overhead heater that I have had for many years, it keeps my basement shop warm and the house floors warm also. I have replaced almost everything on it except the heater core. As long as you know what the heck your doing. I also keep the zone heaters repaired also ( many years also )I can find everything here, ships fast, and everything works fine.
Randy
2025-05-26 18:12:06
It is nice to be able to get multiple in one order for a good price
Richard Elliott
2025-05-17 09:07:48
I'm not impressed with these thermo switches. The set point was all over the place. Out of the five switches none of them closed at 102°. The closest one was about 108 or 109, the worst was 120-121 degrees. And the deadband is horrible. They don't reopen until below 80 or so, I only test one of the five and it was 78° before it opened again. The saving grace is they were cheap. Guess you get what you pay for.
Charlie Tosh
2025-05-16 13:59:44
I purchased these to control a fan motor. I ended up bypassing the thermostat and running the fan all the time. The parts seem well made for what they are, but I dont know if they work or how long they last.
Customer
2025-03-19 17:42:37
Work perfectly
JB Stoltzfus
2025-02-26 10:07:53
First of all these are ruined if you bend the connection tabs. Secondly the aren't reliable. They quit working after a few weeks. Not recommended.
Pappyl
2025-02-19 14:56:20
Did not reset as expected once temps drop below threshold, so had to return.Normally open - exposure beyond 104F - contacts close and stay closed.
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