Thermostatic Switches

ThermThermostats 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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Beskrivning Pris 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-artikelnummer 228-2535
Tillv. art.nr2455RC 9082-466 L220C
VarumärkeHoneywell
74,55 kr
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0°C +260°C +220°C +180°C Bi-Metallic NC 10 A 250 V ac Solder Tab - - -
RS-artikelnummer 229-5963
Tillv. art.nr2455RP 9100-444 F70C
VarumärkeHoneywell
54,03 kr
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0°C +186°C +55°C +70°C Bi-Metallic NO 10 A 250 V ac Solder Tab - - -
RS-artikelnummer 357-7531
Tillv. art.nr602021/0001-064-000-25-1000-40-10-00-00-000-00-6
VarumärkeJumo
1 078,46 kr
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+50°C +300°C - - Capillary - 0.25 A @ 230 Vdc, 16 A @ 230 Vac 230 V ac/dc Solder Tab - - -
RS-artikelnummer 229-5878
Tillv. art.nr2455RP 9100-436 L80C
VarumärkeHoneywell
55,23 kr
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0°C +186°C +80°C +65°C Bi-Metallic NC 10 A 250 V ac Solder Tab - - -
RS-artikelnummer 684-1185
Tillv. art.nr603070/0002-7-026-000-25-2000-40-10-00-00-000-00-6
VarumärkeJumo
550,40 kr
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0°C +120°C - - Capillary NO/NC 16 A 250 V ac Screw - - -
RS-artikelnummer 684-1191
Tillv. art.nr603070/0002-7-064-000-25-2000-40-10-00-00-000-00-6
VarumärkeJumo
738,59 kr
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+50°C +300°C - - Capillary NO/NC 16 A 250 V ac Screw - - -
RS-artikelnummer 111-7167
Tillv. art.nrCA-85
VarumärkeSelco
67,78 kr
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+10°C +150°C +67°F +85°F Bi-Metallic NO 10 A @ 250 V ac, 15 A @ 125 V ac 125 V ac @ 15 A, 250 V ac @ 10 A Solder Tab Surface Mount Automatic Close On Rise
RS-artikelnummer 357-7913
Tillv. art.nr603021/02-2-043-30-1000-40-10-00-00-000-00-6/000
VarumärkeJumo
1 611,59 kr
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+20°C +150°C - - Capillary - 0.25 (dc) A, 10 (ac) A 230 V ac/dc Screw - - -
RS-artikelnummer 229-5907
Tillv. art.nr2455RP 9100-433 L50C
VarumärkeHoneywell
56,65 kr
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0°C +186°C +50°C +35°C Bi-Metallic NC 10 A 250 V ac Solder Tab - - -
RS-artikelnummer 228-2591
Tillv. art.nr2455RM 9082-471 L120
VarumärkeHoneywell
81,70 kr
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+50°C +150°C +120°C - Bi-Metallic NC 10 A 250 V ac Solder Tab - - -
RS-artikelnummer 467-028
Tillv. art.nr603070/0001-6-016-000-25-0-00-15-00-00-000-00-17
VarumärkeJumo
805,49 kr
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-10°C +40°C - - Capillary - - - - - - -
RS-artikelnummer 253-2745
Tillv. art.nr67L080
VarumärkeSensata / Airpax
58,95 kr
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+40°C +130°C +80°C - Bi-Metallic NC 1 A 48 V dc, 120 V ac PCB Pin PCB Mount Automatic Open On Rise
RS-artikelnummer 331-534
Tillv. art.nr2455R 82-715 L120C
VarumärkeHoneywell
50,42 kr
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0°C +150°C +120°C +105°C Bi-Metallic NC 15 A 120 → 250 V ac Quick Connect - - -
RS-artikelnummer 357-9931
Tillv. art.nr603021/02-2-043-30-2000-40-10-00-00-000-00-6/000
VarumärkeJumo
1 674,56 kr
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+20°C +150°C - - Capillary NO/NC 10 A 230 V ac/dc Solder Tab - - -
RS-artikelnummer 111-7126
Tillv. art.nrOM-212-QC
VarumärkeSelco
166,69 kr
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+50°C +150°C +212°F - Bi-Metallic NC 10 A @ 250 V ac, 15 A @ 125 V ac 125 V ac @ 15 A, 250 V ac @ 10 A Quick Connect Rotating Bracket Manual Open On Rise
RS-artikelnummer 228-2608
Tillv. art.nr2455RM 9082-470 L100
VarumärkeHoneywell
81,70 kr
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+50°C +150°C +100°C - Bi-Metallic NC 10 A 250 V ac Solder Tab - - -
RS-artikelnummer 684-1201
Tillv. art.nr603070/0020-7-671-000-70-2000-40-10-00-00-000-00-6
VarumärkeJumo
616,47 kr
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+70°C +130°C - - Capillary NO/NC 16 A 250 V ac Screw - - -
RS-artikelnummer 466-986
Tillv. art.nr603026/0202-1-025-30-0-00-20-13-46-120-15-6/000
VarumärkeJumo
2 429,07 kr
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0°C +100°C - - Capillary NO/NC 0.25 (dc) A, 10 (ac) A 230 V ac/dc Screw - - -
RS-artikelnummer 253-2694
Tillv. art.nr67F070
VarumärkeSensata / Airpax
88,74 kr
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+40°C +130°C - +70°C Bi-Metallic NO 1 A 48 V dc, 120 V ac PCB Pin PCB Mount Automatic Close On Rise
RS-artikelnummer 228-2620
Tillv. art.nr2455R 9082-463 L110C
VarumärkeHoneywell
55,45 kr
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- - +110°C - Bi-Metallic NC 10 A 250 V ac Solder Tab - - -
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