Details

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FUJI TR-5-1N/3 Thermal Overload Relay (2.8-4.2A)

Key Features:

1. Thermal Overload Protection:

   • The TR-5-1N/3 is designed to protect AC motors from overheating caused by excessive current draw. It monitors the motor's current and uses a thermal element to determine when to trip the relay. This protects the motor from damage due to prolonged overload conditions.

2. Current Range:

   • The TR-5-1N/3 operates in the 2.8 to 4.2 A range, which is ideal for motors operating in this current range. It ensures precise protection for motors with a slightly higher power rating compared to the lower-rated relays in the TR series.

3. Adjustable Trip Setting:

   • The relay offers an adjustable current range from 2.8 A to 4.2 A, allowing you to fine-tune the trip point to suit the specifications of your motor. This feature is essential for matching the relay’s protection capabilities with the motor's rated current.

4. Manual Reset Function:

   • After the relay trips due to an overload, it must be manually reset before normal operation can resume. This prevents the motor from automatically restarting in an unsafe condition, ensuring that the cause of the overload is addressed.

5. Visual Trip Indicator:

   • The TR-5-1N/3 comes with a visual indicator that clearly shows when the relay has tripped. This makes it easy for operators to identify an overload condition and take corrective action quickly.

6. Compact Design:

   • The relay’s compact design allows it to be mounted easily in a DIN rail setup, making it convenient for installation in control panels or motor control centers.

7. Protection Against Phase Failure:

   • This relay provides protection against phase failure, ensuring that the motor is not exposed to damage in the event of a power loss in one or more phases. This feature is critical for motors running on three-phase power.

8. Wide Operating Temperature Range:

   • The TR-5-1N/3 operates in a temperature range from -5°C to +40°C, making it suitable for various environmental conditions and industrial applications.

9. Reliability and Safety:

   • The relay is designed to offer reliable protection for motors, reducing the risk of damage caused by thermal overload and extending the lifespan of both the motor and the relay itself.