Details

---

FUJI TR-0N/3 Thermal Overload Relay (2.2-3.4A)

Key Features:

1. Thermal Overload Protection:

   • The TR-0N/3 provides effective thermal overload protection by monitoring the current passing through the motor. If the current exceeds the preset threshold for a prolonged period, the relay will trip, preventing the motor from overheating and avoiding potential damage to its windings.

2. Current Range:

   • This relay is adjustable within a range of 2.2 A to 3.4 A, making it suitable for protecting motors with current ratings in this range. The adjustable trip setting allows for precise motor protection by matching the relay’s trip point to the motor’s rated current.

3. Adjustable Trip Settings:

   • The adjustable trip setting feature ensures that the TR-0N/3 can be fine-tuned to provide optimal protection for different types of motors. This adjustment is essential for ensuring that the motor is only tripped when there is an actual overload situation, rather than during normal operation.

4. Manual Reset After Trip:

   • After the relay trips due to an overload condition, it must be manually reset before the motor can restart. This feature ensures that operators address the underlying issue (such as excessive load or insufficient cooling) before restarting the motor, preventing further damage.

5. Visual Trip Indicator:

   • The visual trip indicator clearly shows when the relay has tripped, allowing operators to quickly identify the cause of the trip. This aids in the efficient troubleshooting and maintenance of the system, reducing downtime.

6. Compact and Space-Saving Design:

   • The TR-0N/3 relay has a compact design, making it suitable for installation in confined spaces within control panels. Its small size allows for efficient use of space while still providing effective motor protection.

7. Phase Failure Protection:

   • In addition to thermal overload protection, the TR-0N/3 offers phase failure protection, safeguarding motors from damage caused by phase loss or unbalanced phases. These conditions can lead to motor overheating and failure if left unaddressed.

8. Wide Operating Temperature Range:

   • The TR-0N/3 operates in a temperature range of -5°C to +40°C, ensuring reliable performance even in harsh or variable environmental conditions.

9. DIN Rail Mounting:

   • The TR-0N/3 is designed to be mounted on a DIN rail, making it easy to install in electrical control panels. This allows for quick and secure installation while maintaining a clean and organized control panel setup.

Applications:

• Motor Protection: The TR-0N/3 is primarily used to protect AC motors in a wide range of applications, including pumps, fans, conveyors, compressors, HVAC systems, and industrial machinery where the current falls within the 2.2 to 3.4 A range.

• HVAC Systems: Suitable for protecting motors in heating, ventilation, and air conditioning (HVAC) systems, where reliable motor protection is critical to prevent overheating and system failure.

• Industrial Equipment: Ideal for small to medium-sized industrial motors, providing cost-effective protection in systems with moderate power requirements.

• Automation Equipment: Used to safeguard motors in automated manufacturing lines and other applications that require motors to run continuously or under load conditions.

Technical Specifications:

• Model: TR-0N/3

• Current Range: 2.2 A to 3.4 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 (standard motor protection class)

• Mounting Type: DIN rail mount for easy installation

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

• Indication: Visual trip indicator for easy 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 certifications