Honeywell Thermostatic Switches

Thermostat switches are used in temperature control systems to regulate air and liquids, ensuring that they remain within the desired temperature range. These devices can be used in both commercial and domestic applications.

What Does a Thermostatic Switch Do?

Thermostatic switches, also known as temperature switches or thermostat control switches, are electromechanical devices designed to sense temperature changes and automatically switch an electrical circuit on or off in response. This ensures that the desired temperature is maintained, preventing overheating or excessive cooling.

Different Types of Thermostatic Switch

Thermostatic switches come in various types, each employing a different mechanism to sense temperature changes, with two of these being:

Capillary Thermostat Switches

Capillary thermostat switches utilise a sealed system containing a temperature-sensitive fluid and a pressure-sensitive diaphragm. As the temperature at the sensor changes, the fluid expands or contracts, causing a change in pressure that activates the diaphragm. This movement, in turn, opens or closes the electrical contacts, controlling the flow of current to the heating or cooling system.

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 Thermostat Switches

Bimetallic thermostat switches operate based on the principle of differential linear expansion. They consist of two different metals bonded together, each with a different coefficient of linear expansion. When the temperature changes, the bimetallic strip bends due to the unequal expansion of the two metals. This bending action is used to open or close electrical contacts, regulating the heating or cooling system. The metal strip doesn't react instantly, which prevents the heating system from constantly switching on and off.

Bimetallic thermostatic switches are simple, reliable, and cost-effective, making them suitable for a wide range of applications.

Thermostat Switches Applications

Thermostatic switches are widely used in various industries to ensure precise temperature control and maintain optimal operating conditions. Here are some common applications:

• HVAC Systems: Thermostatic switches regulate heating and cooling systems in buildings, ensuring comfortable indoor temperatures while optimising energy consumption.
• Automotive Industry: These switches control engine cooling systems, preventing overheating and ensuring optimal engine performance.
• Food Processing: Thermostatic switches maintain precise temperatures in food processing equipment, ensuring food safety and quality.
• Medical Equipment: They are used in medical devices to regulate temperature for patient comfort and safety.
• Industrial Processes: Thermostatic switches control heating elements in industrial processes, maintaining consistent temperatures for optimal production.

How to Choose the Right Thermostatic Switch

Selecting the appropriate thermostatic switch requires careful consideration of several factors. These include the temperature range, switching current, mounting style, and environmental conditions. It's also important to consider the specific application and the level of accuracy required.

RS Hong Kong offers a wide range of thermostatic switches to meet diverse needs. Our selection includes capillary thermostats, bimetallic thermostats, and other specialised types like digital and smart thermostats, ensuring you find the perfect solution for your temperature control requirements. With our commitment to quality and customer satisfaction, you can rely on RS to provide reliable and durable products.

How to Order Thermostatic Switch from RS Hong Kong?

RS Hong Kong is a trusted supplier of thermostatic light switches, offering a wide selection from reputable brands like Sensata / Airpax, Honeywell and Jumo. Our online platform provides a seamless ordering experience, allowing you to easily browse our product range, compare specifications, and place your order with just a few clicks.

Besides temperature control switches, we also offer other essential components for electrical control and automation, such as proximity sensors and metal enclosures, to help you build complete and reliable systems.

How Delivery Works at RS Hong Kong

RS Hong Kong offers reliable and efficient delivery services to ensure your orders reach you promptly. We provide various delivery options, including standard delivery and express delivery, allowing you to choose the service that best suits your requirements.

Our online platform provides real-time tracking information, enabling you to monitor your order's progress from dispatch to delivery. We also offer flexible delivery options, including delivery to your doorstep or a designated collection point. To learn more about our delivery services, please visit our delivery information page.