How Integrated Thermal Protection Technology Can Prevent Solid State Relay Failure in Industrial Systems

This white paper compares electromechanical and solid state relays for detecting overheating in electrical motors.
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Large electrical motors are used in a wide range of equipment for industries and applications such as manufacturing, industrial and commercial HVAC, refrigeration, heavy duty transportation, medical, energy, assembly lines, and conveyor belts to name a few. An overheated motor can result in expensive damages; to avoid this, many companies using motor-driven machinery will invest in systems that sense overheating and turn the motor off. In most cases, these devices are electromechanical relays or solid state relays. For a long time, EMRs were the more common choice. This white paper compares the two and presents the advantages of choosing an SSR.

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Sensata Solid State Relays

EMRs vs SSRs

Solid state relays provide robust solutions for electronic switching in load control applications and hold many advantages over  electromechanical relays. New, emerging solid state relay designs offer integrated thermal protection that can prevent overheating and improve system safety, efficiency and longevity.

Since the 1970s, traditional solid-state relays have offered a proven electronic switching solution for a variety of applications, providing a longer lasting, more versatile, flexible and robust solution than electromechanical relays.

For the first time, new solid-state relays featuring integrated thermostats can prevent overheating and identify heat sinking issues to help improve system safety, efficiency and longevity. This product evolution will undoubtedly change the game in thermal protection for a wide range of applications.

Advantages of Solid State Switching Technology:

  • Long Life
  • Quiet Operation
  • Fast Switching
  • Low Power Consumption
  • Compatibility with Control Systems
  • Magnetic Noise Immunity
  • Shock and Vibration Resistant

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