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Product Name : Thermostat
Model : KSD-01F
Temperature : 60℃
Contact : N.O(Normal Open)
Power : 220VAC 1A /24VDC 3A
Circuit Resistance : ≤50m ohm
Insulation Resistance : ≥100M Ohm(500VDC)
Insulation Strength : 1500V/DC, 60Hz
Total Size : 30 x 10 x 5mm/1.18 x 0.39 x 0.2inch(L*W*H)
Package Content :
5pcs x Thermostat
Description:
1.KSD-01F 60℃ Temperature Control Switch Thermostat.
2.General-purpose low cost, compact, large capacity, minute current thermostat.
3.Apply to circuit board of temperature control or thermal overload protection use.
MaxVideo
Reviewed in the United States on September 15, 2024
I've had dozens of these cheap batches of thermal switches. Most of them work, and most of them trigger near the correct temperature (within about 10 deg C, they are not more accurate than that).But some of them will just quit working soon after installing, meaning as the temperature goes up and down, they just quit opening/closing, or get stuck in the heated position (so for a N.O. designed to close at 60 deg, it might stick closed and never open when the temperature cools. Another more insideous problem some of them have is that they don't "snap" to a certain "closed" or "open" state. Instead, they will "sort of close", and impart a significant resistance to the circuit. So if you are switching a 12v circuit on/off with one of these, you might suddenly see weird behavior where sometimes, you only get 9 or 7, because the thermal switch didn't completely close. Or it will "gradually" close as the temperature goes up over its set point. So a 60 deg N.O. might start closing around 50, but there will be hundreds of ohms in the path, and as it gets closer to 60, that resistance drops, until finally, the thermal switch is completely closed and the resistance of it drops to nearly zero.So yes, they work, and for a really simple circuit where you are just turning on a light of a conventional motor, the sloppy behavior might not matter to you. But if you are doing something like turning on a brushless computer fan (which I was), beware. The sloppy, gradual on/off behavior can leave a 12v fan seeing 10.5, 11.2, or whatever - and those fans can get stalled at low voltage so that even when it does finally reach 12, the fan will not start until power is removed.
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