uxcell 10pcs NC KSD301 Thermostat 40-135°C(104-275°F) Temperature Thermal Control Switch 40 50 60 70 80 90 100 110 120 135°C Normally Close Assortment Kit

I used them for making sure that stepper motors don't get too hot. So far very happy with them. Added a third one to a coffee grinder that blew the thermal switch and would have gone to the junk. Now not only does it work again, but will automatically reset when cool enough to safely run. Great stuff.

I ordered these. First off great value. Very reliable and exactly what was written in the description. I will definitely be ordering more as needed.

These thermal fuses work as indicated. This set has a good variety of temperatures to suit your needs.

I had to return them. I needed a snap switch that closed when something got hot. These kick off when hot.

Universal roll out switch saving alots time on jobside

Christmas at my sisters house, GE stove-top microwave/hood bites the bullet. First check: main fuse (blown). (Off to Harbor Freight for a digital multimeter then...) Second check: KSD201 Thermal Control Switches (it has two)--one has no resistance (good), other is shorted (infinite resistance--blown). Pop a readily available automotive Buss fuse in for the main fuse (see Note below). KSD201 Thermal Control Switch is not locally available and will take days on Amazon. However, above kit includes KSD301 of proper capacity. What's the difference? Will it work? Amazon will have the kit there tomorrow--Take a chance! KSD301 worked fine except that the electrical tabs were wider than the KSD201 and I had to file them down so the connectors in the microwave would fit. No big deal, took ten minutes or so with an automotive points file (probably could have used a fingernail file--the connectors are brass).NOTE: Main fuse is a ceramic "Slow blow" fuse. The "quick fix" automotive buss fuse worked for a week or two but eventually blew. Make sure you get the ceramic fuse either from Amazon or a local Big Box home repair store.