Established in 1998, China Dianshen Electric Co., Ltd. is a professional thermal switch manufacturer and thermal switches design of electric and electronic products. Together with the European 'CE', 'CCC', GS/EMC/LICE/UL/CSA, and 'CB' (IEC) certification that we have received for various series. Currently, our custom thermal switch product series are being exported worldwide. Our pursuit of first-rate quality, competitive and cheap thermal switches prices and comprehensive after-sales services offers both potential and long-standing clients confidence in our company.

Thermodisc #36TV21 L57-8.5C. Auto-reset bimetal thermal cut-off switch. Normally-closed. Opens at 57C degrees (approx 134F). Resets when temp falls 8.5C deg. 0.70" diameter x 0.74" high including terminals. Mounting holes on 0.9" centers. 0.25 qc/solder terminals. Where it is not possible to screw the switch to the item (such as a transformer), a high temperature epoxy can be used. Do not use Super-Glue or similar, as it is unsuited to the task.Likewise, don't use the 5-Minute "epoxies".They are not true epoxies, and cannot tolerate the sustained heat. True epoxy adhesives take about 24 hours to cure properly, and once cured are extremely robust.

The simplest of all is the thermal switch. These are used in washing machines, dish washers, microwave ovens, and many other appliances, and can be obtained from an appliance repairer for less than $10 .The switches need to be screwed down to heatsinks using thermal compound, but should be glued to transformers using a suitable adhesive (see below). Make certain that the tags are properly insulated to prevent electrocution - this is VITALLY important.
Figure 1 shows the connections for the type of unit I refer to. These switches are available in a variety of temperatures, normally open, normally closed, etc. For amplifier protection, you need up to three normally closed thermal switches (TS1 to TS3), rated at no more than 80 degrees Celcius.

Also you can visit China Electrical & Electronics Manufacturer Catalog or China Electrical & Electronics Products Catalog to find more China Products!