Techo thermal overload relay

The Techo Thermal Overload Relay is an essential component in motor control systems, designed to protect electric motors from damage caused by prolonged overloads or phase failures. It ensures reliable operation and extends the lifespan of your equipment by automatically interrupting power when unsafe current levels occur.

How It Works

This relay operates on the thermal effect of electric current. When excessive current flows through the motor, the relay’s bimetallic strip heats up and bends. This movement triggers a trip mechanism, which opens the control circuit and stops the motor. Once the unit cools down, it can be reset manually or automatically, depending on the model.

Key Features

• Adjustable current settings for different motor capacities

• Compact, lightweight design for easy panel integration

• High-accuracy tripping mechanism for consistent protection

• Manual or automatic reset options

• Compatibility with a wide range of contactors

Applications

The Techo Thermal Overload Relay is widely used in:

• Industrial machinery and conveyors

• Pumps and compressors

• HVAC systems

• Agricultural equipment

• Manufacturing assembly lines

Standards and Compliance

This relay meets international safety standards such as IEC 60947-4-1, ensuring dependable performance in demanding environments. For detailed motor protection guidelines, refer to the International Electrotechnical Commission.

Benefits

• Prevents costly motor damage due to overloads

• Reduces downtime and maintenance expenses

• Enhances system safety and reliability

• Simple installation and operation

For more protective devices, explore our Motor Protection and Control Products Collection and keep your equipment running safely and efficiently.