The ABB 1SAZ211201R1047 TA25DU-19 Thermal Overload Relay is a protective device designed to safeguard electric motors and other equipment from overload conditions. Here’s a breakdown of the key features and specifications of this model:
Key Features:
- Model Number: 1SAZ211201R1047
- Type: Thermal Overload Relay
This type of relay protects electrical circuits, particularly motors, by sensing excessive heat caused by prolonged overcurrent conditions. It is widely used in motor protection circuits. - Current Range: 13 A to 19 A
The TA25DU-19 relay is designed for use with circuits where the load current falls within this range, making it ideal for protecting medium-sized motors. - Trip Class: Class 10
This indicates the response time to overloads. In Class 10, the relay trips within 10 times the rated current after a set amount of time. It is suitable for applications that need relatively fast overload protection. - Mounting: The relay is typically mounted directly to the contactor to create a motor protection unit. It integrates seamlessly with the ABB TA25 series contactors for efficient protection.
- Adjustable Settings: The relay can be adjusted within its rated current range (13–19 A), allowing flexibility to match the protection needs of specific motors or equipment.
- Overload Protection: Provides reliable protection for motors against overheating due to overload conditions. This ensures the motor does not suffer damage from prolonged overcurrent situations.
- Temperature Compensation: The thermal overload relay is equipped with temperature compensation to adjust its operation based on the surrounding temperature, ensuring accurate protection in varying environments.
- Manual Reset: After tripping, the relay requires a manual reset, preventing unnecessary restarts and ensuring that any faults are identified before re-energizing the circuit.
Common Applications:
- Motor Protection: Widely used in motor control circuits to protect motors from thermal damage due to overload.
- Industrial Equipment: Protects various types of industrial equipment and machinery, ensuring reliability and longevity of devices by preventing overheating.
- HVAC Systems: Used in HVAC (heating, ventilation, and air conditioning) systems to protect compressors and other motor-driven components.
Advantages:
- Reliability: ABB’s TA25DU-19 relay offers consistent and dependable overload protection, reducing the risk of motor damage due to electrical faults.
- Cost-Effective: It provides an efficient, low-cost solution for motor protection, extending the service life of equipment and reducing maintenance costs.
- Simple to Use: With adjustable settings and easy integration with ABB contactors, the relay is user-friendly and convenient for various industrial applications.
The ABB 1SAZ211201R1047 TA25DU-19 Thermal Overload Relay is an essential component in protecting electrical motors and machinery from the risk of overheating, making it a reliable choice for industrial and commercial applications requiring motor protection.
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