Thermostatic Switches

Thermostats are used in temperature control systems regulating air or liquids and can be used in both commercial and domestic applications. The two main types are capillary and bimetallic thermostats.
RS Components offer a range of thermostats such as enclosure thermostats, mechanical HVAC thermostats, digital and programmable HVAC thermostats, digital and smart thermostats with Wi-Fi.

What Does a Thermostat Do?
It regulates the temperature of a liquid in a tank, or in conjuction with air conditioning units to monitor the air in a room/system. The thermostat simply switches the system off or on whenever necessary so that a constant temperature can be maintained. At home room thermostats switches on the heating when the room is cold and once the temperature has reached the level set, the programmable thermostat switches the heating off.

Capillary Thermostats
These consist of a sensor, capillary tube, diaphragms, a probe and an expansion medium. When the liquid heats up and expands, the temperature sensor is heated allowing for it to be converted into displacement in the diaphragm. The contacts within the closed circuit system can be opened or closed by this displacement due to pressure.
Due to their accuracy and easy installation, they are widely used to control air and water temperatures and are suitable for use in storage heaters, hot tanks and boilers to control hot water.

Bimetallic Thermostats
These consist of a strip of two different metals with different coefficients of linear expansion. The bimetallic strip acts as an electric contact breaker in an electric heating circuit. When the desired temperature is reached, the circuit is broken.
The strips of metal are bolted together. A bridge is then created in the electrical circuit and is connected to your heating system. The strip carries electricity through the circuit when the heating is on. When the strips get hot, both of the metals expand but one more so than the other. The hottest metal bends and opens the circuit. Once the circuit is open the electricity switches off and the heating cuts out.
Once the heating is off, the room cools down which in turn cools down the strip of metal and allows it to go back to its original shape. When it cools, the metal goes back into the circuit and switches the heating back on as the electricity flow has been re-established. The metal strip takes a while to expand and contract so the heating is not constantly switching on and off every few seconds.

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กำลังดูสินค้า 1 - 20 รายการจาก 152 รายการ / Viewing 1 - 20 of 152 products
ผลการค้นหาต่อหน้า / Results Per Page
รายละเอียดสินค้า / Description ราคา / Price Minimum Temperature Maximum Temperature Opening Temperature Closing Temperature Thermostat Type Switch Configuration Contact Rating Contact Voltage Rating Terminal Type Mounting Type Reset Type Switch Function
RS Stock No. 733-4710
Brand :RS PRO
THB971.44
Each
Units
0°C +120°C - - Capillary SPDT 15 A 250 V ac - Panel Mount - -
RS Stock No. 733-4735
Brand :RS PRO
THB1,032.65
Each
Units
+90°C +110°C - - Capillary SPDT 16 A 250 V ac - Panel Mount Manual -
RS Stock No. 733-4723
Brand :RS PRO
THB968.57
Each
Units
0°C 90°C - - Capillary SPDT 16 A 250 V ac - Panel Mount Automatic -
RS Stock No. 733-4729
Brand :RS PRO
THB976.26
Each
Units
0°C +300°C - - Adjustable Capillary SPDT 16 A 250 V ac - Panel Mount Manual -
RS Stock No. 733-4726
Brand :RS PRO
THB948.36
Each
Units
+40°C +210°C - - Capillary SPDT 16A 250 V ac - Panel Mount Automatic -
RS Stock No. 733-4732
Brand :RS PRO
THB955.80
Each
Units
-30°C +35°C - - Capillary SPDT 16 A 250 V ac - Panel Mount Manual -
RS Stock No. 733-4713
Brand :RS PRO
THB965.23
Each
Units
0°C +40°C - - Capillary SPDT 16 A 250 V ac - Panel Mount Manual -
RS Stock No. 228-2541
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.2455RC 9082-465 L200
Brand :Honeywell
THB349.76
Each
Units
0°C +260°C +200°C +160°C Bi-Metallic NC 10 A 250 V ac Solder Tab - - -
RS Stock No. 494-0851
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.2455RC-90820387
Brand :Honeywell
THB350.50
Each
Units
0°C +260°C +150°C - Bi-Metallic SPST NC 10/15 A 120 → 250 V ac Quick Connect - - -
RS Stock No. 228-2529
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.2455RC 9082-467 L250
Brand :Honeywell
THB358.12
Each
Units
0°C +260°C +250°C +210°C Bi-Metallic SPST NC 15 A 120 → 250 V ac Quick Connect - - -
RS Stock No. 228-2636
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.2455R 9082-462 L50C
Brand :Honeywell
THB331.04
Each
Units
- - +50°C - Bi-Metallic NC 10 A 250 V ac Solder Tab - - -
RS Stock No. 339-724
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.2455R 82-235 L150C
Brand :Honeywell
THB326.87
Each
Units
- - +150°C - Bi-Metallic NC 10 A 250 V ac Solder Tab - - -
RS Stock No. 331-534
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.2455R 82-715 L120C
Brand :Honeywell
THB331.04
Each
Units
0°C +150°C +120°C +105°C Bi-Metallic NC 15 A 120 → 250 V ac Quick Connect - - -
RS Stock No. 357-7840
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.602021/0005-046-000-50-1000-20-10-00-00-000-00-8
Brand :Jumo
THB7,805.77
Each
Units
+20°C +500°C - - Capillary SPST 16 A 230 V - - - -
RS Stock No. 331-578
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.2455R 82-711 F100C
Brand :Honeywell
THB333.37
Each
Units
- - - +85°C Bi-Metallic NO 15 A 240 V ac Quick Connect - - -
RS Stock No. 228-2535
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.2455RC 9082-466 L220C
Brand :Honeywell
THB351.11
Each
Units
0°C +260°C +220°C +180°C Bi-Metallic NC 10 A 250 V ac Solder Tab - - -
RS Stock No. 331-540
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.2455R 82-713 F60C
Brand :Honeywell
THB326.87
Each
Units
- - +45°C +60°C Bi-Metallic NO 15 A 240 V ac Quick Connect - - -
RS Stock No. 253-2739
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.67L070
THB249.48
Each
Units
+40°C +130°C +70°C - Bi-Metallic NC 0.5 A 48 V dc PCB Pin PCB Mount Automatic Open On Rise
RS Stock No. 229-5913
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.2455RP 9100-432 L30C
Brand :Honeywell
THB333.28
Each
Units
0°C +186°C +30°C +20°C Bi-Metallic NC 10 A 250 V ac Solder Tab - - -
RS Stock No. 357-7834
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.602021/0005-064-000-25-1000-40-10-00-00-000-00-6
Brand :Jumo
THB5,636.99
Each
Units
+50°C +300°C - - Capillary - 20 mA 24 V ac/dc Solder Tab - - -
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