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Understanding temperature switches for industrial applications

Temperature switches are essential safety components in a wide range of industrial settings, helping to protect equipment from potential harm caused by excessive heat. They act as a safeguard by monitoring temperature levels and triggering actions when thresholds are exceeded, ensuring that machinery is not subjected to damaging conditions.

How temperature switches work

Many temperature switches operate using bimetallic technology, which is based on thermal expansion. This involves two different metals bonded together that expand at different rates when exposed to heat. When the preset temperature limit is reached, the switch either opens or closes an electrical circuit initiating a shutdown or activating an additional function such as a cooler. This intervention when temperatures move outside of safe operating limits provides protection for equipment, preventing it from overheating or operating in unsafe conditions.

Applications across industries

Temperature switches are incredibly versatile, finding use in a wide range of industries:

  • Manufacturing: In high-temperature industrial environments like industrial ovens, kilns, furnaces, and molding machines, temperature switches act as a fail-safe to prevent overheating and equipment failure and protect production processes.
  • HVAC systems: Heating, ventilation, and air conditioning (HVAC) systems rely heavily on temperature switches to avoid damage to fans, compressors and motors caused by excessive heat.
  • Food processing: In the food industry, temperature switches automatically respond when temperatures deviate from preset levels. If the oven or other heat-related equipment exceeds the intended temperature, the switch either shuts down the system or activates cooling mechanisms, helping to avoid damage to the equipment.

Benefits of using temperature switches

  1. Preventative safety: By automatically shutting down equipment when temperatures exceed safe limits, temperature switches minimise the risk of fires, equipment malfunctions, and other hazards.
  2. Equipment protection: By preventing machinery from running at unsafe temperatures, these switches extend the life of industrial equipment, reducing the frequency of breakdowns and repairs. With protective actions being triggered in the event of excessive heat, they help prevent equipment failures that could lead to significant operational downtime.

Temperature switches are essential for ensuring the safe operation of industrial equipment, providing reliable, automatic intervention when temperatures rise to dangerous levels to avoid overheating and subsequent damage.

Looking for the right temperature switch for your system? With a maximum switching temperature of 450°C, our TB97 High Temperature Protector is widely used in high-temperature industrial applications. It is manufactured in-house at our production facility where we maintain strict quality controls to ensure our products exceed the expectations of industries where safety and function-critical performance are non-negotiable. For more information on this switch and others in our portfolio, please visit www.limitor.com

 

Article published on: 2024. 10. 21.

Article last updated on: 2024. 10. 21.