Relpol Thermal Overload Relay LR2K0304, 0.36A-0.54A

The Relpol Thermal Overload Relay LR2K0304 is a specialized protective device engineered to safeguard electric motors from damage caused by overloads and phase failures. Designed for integration into industrial control circuits, this relay provides precise monitoring of current flow within the 0.36A to 0.54A range. Its compact construction allows for efficient space utilization in control panels, ensuring that motor systems remain operational and protected against electrical faults that could lead to overheating or mechanical failure.

Advantages

This thermal overload relay offers high reliability in demanding industrial environments by providing accurate thermal protection. The adjustable current setting allows for fine-tuned calibration to match the specific requirements of the connected motor, ensuring optimal performance and safety. Its robust design contributes to the longevity of motor equipment by preventing damage during abnormal operating conditions, thereby reducing maintenance needs and downtime in automated systems.

Suitable for

• Protection of small electric motors in industrial automation
• Integration into motor starter assemblies
• Control circuits requiring precise thermal monitoring
• Applications prone to potential phase loss or overload conditions

When it may not be suitable

This device is not intended for use with motors exceeding the specified current range of 0.36A to 0.54A. It is also not suitable for applications requiring protection against short-circuit currents, as it is designed specifically for thermal overload and phase failure protection rather than instantaneous fault interruption.

Key specifications

• Current adjustment range: 0.36A to 0.54A
• Function: Thermal overload and phase failure protection
• Application: Industrial motor control circuits
• Design: Compact modular form factor

How to use

The relay is typically mounted directly onto a compatible contactor. Once installed, the current setting should be adjusted using the integrated dial to match the full-load current rating of the motor being protected. Ensure all electrical connections are tightened according to the manufacturer's torque specifications to prevent overheating at the terminals. The device should be tested periodically to ensure the trip mechanism functions correctly under simulated conditions.

What to consider before purchase

• Verify the full-load current rating of your motor falls within the 0.36A to 0.54A range
• Ensure compatibility with your existing contactor model
• Confirm the environmental conditions of the installation site are within the device's operating limits

Usage recommendations

Always disconnect the power supply before installing or adjusting the relay. Ensure that the relay is properly calibrated to the motor's nominal current to avoid nuisance tripping or inadequate protection.