LS MT-32 21.5A M-SO Thermal Overload Relay 18-25A

The LS MT-32 21.5A M-SO is a high-quality thermal overload relay engineered to provide robust protection for electric motors. Operating within an adjustable current range of 18 to 25 amperes, this device is designed to detect and interrupt power in the event of an overload or phase failure, thereby preventing costly damage to motor windings and associated electrical components. Its compact design and reliable switching mechanism make it a standard choice for industrial automation and motor control centers.

Advantages

This thermal overload relay offers exceptional precision in monitoring current flow, ensuring that motors operate within their safe thermal limits. By providing a rapid response to abnormal current conditions, it significantly extends the service life of electrical equipment and reduces the risk of unexpected downtime. The adjustable current dial allows for fine-tuned protection tailored to the specific requirements of the connected motor, while the durable construction ensures consistent performance in demanding industrial environments.

Suitable for

• Industrial motor control systems
• Automation and manufacturing machinery
• HVAC systems and pump control
• Conveyor belt motor protection

This device is not suitable for applications requiring protection against short-circuit currents, as it is designed specifically for thermal overload and phase loss scenarios. It should not be used as a primary disconnecting means or in environments where the ambient temperature exceeds the manufacturer's specified operating limits.

Key specifications

• Adjustable current range: 18A to 25A
• Protection type: Thermal overload and phase failure
• Mounting: Direct contactor mounting
• Operating environment: Industrial standard

To use the LS MT-32 21.5A M-SO, it should be installed directly onto the corresponding contactor. Once mounted, the current setting dial must be adjusted to match the full-load current rating of the motor being protected. After installation, ensure all terminal connections are tightened securely to prevent overheating. The device features a manual or automatic reset function that can be configured based on the specific operational requirements of the system.

What to consider before purchase

• Verify the full-load current rating of your motor falls within the 18-25A range
• Ensure compatibility with your existing contactor model
• Check the ambient temperature of the installation site
• Confirm the need for manual or automatic reset functionality

For optimal performance and safety, always ensure the relay is calibrated correctly to the motor's nameplate current. Regularly inspect the terminal connections for tightness and check the device for signs of wear or environmental contamination to maintain reliable motor protection.