Details

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FUJI TR-0N/3 Thermal Overload Relay (0.48-0.72A)

Key Features:

1. Thermal Overload Protection:

   • The TR-0N/3 is designed to protect small motors from thermal overloads. It monitors the motor's current and trips the circuit if the current exceeds the preset limit for too long, preventing overheating and damage to the motor.

2. Current Range:

   • This model is designed for motors with a current range of 0.48 A to 0.72 A. The adjustable range ensures it can be used to protect motors that draw currents within this range, offering precise protection tailored to the motor's specifications.

3. Adjustable Trip Settings:

   • The adjustable trip settings (within the 0.48-0.72 A range) allow for fine-tuning of the protection to match the motor's rated current, providing optimal motor safety.

4. Manual Reset After Trip:

   • After the relay trips due to an overload, it requires a manual reset to restart the motor. This ensures that operators address the overload condition before allowing the motor to restart, preventing further damage to the motor.

5. Visual Trip Indicator:

   • The visual trip indicator clearly shows when the relay has activated due to an overload. This makes it easier for operators to identify fault conditions quickly, reducing downtime and making maintenance more efficient.

6. Compact and Efficient Design:

   • The TR-0N/3 relay is compact in design, making it suitable for use in confined spaces within electrical control panels. Its small footprint allows for efficient use of available space.

7. Phase Failure Protection:

   • In addition to thermal overload protection, the TR-0N/3 also provides protection against phase failure or unbalanced phases. This feature helps ensure that motors running on three-phase power are protected from conditions that could otherwise cause damage.

8. Wide Operating Temperature Range:

   • The relay operates effectively in environments with temperatures ranging from -5°C to +40°C, making it suitable for a variety of industrial and commercial applications.

9. DIN Rail Mounting:

   • The TR-0N/3 is designed for DIN rail mounting, which allows for easy installation in control panels and motor control centers. This mounting style ensures secure installation and simplifies wiring.

Applications:

• Motor Protection: This relay is ideal for protecting small AC motors in applications such as pumps, fans, small machinery, HVAC systems, and conveyor belts, where the current draw is within the 0.48 to 0.72 A range.

• HVAC Systems: Commonly used in HVAC systems where smaller motors are employed for ventilation, air conditioning, and refrigeration.

• Small Industrial Equipment: Suitable for use in small industrial motors that need reliable protection against overloads.

• Automated Equipment: Protects small motors in automation systems where continuous operation is required, ensuring safety and preventing downtime.

Technical Specifications:

• Model: TR-0N/3

• Current Range: 0.48 A to 0.72 A (Adjustable)

• Voltage Rating: Typically 380-415V AC (verify motor voltage)

• Frequency: 50/60 Hz

• Reset Type: Manual reset after trip

• Overload Protection Class: Class 10 (meets standard motor protection criteria)

• Mounting Type: DIN rail mount for easy installation

• Operating Temperature Range: -5°C to +40°C

• Indication: Visual trip indicator for quick fault detection

• Phase Failure Protection: Yes, protects against phase loss or unbalanced phases

• Enclosure Type: Open type (designed for installation in control panels)

• Certifications: Typically UL, CE, and other relevant international certification