Allen-Bradley 1489-M3D050 Miniature Circuit Breaker

• Rated Current: The rated current is 0.5A. This value is carefully designed and suitable for circuit scenarios with high requirements for current accuracy and relatively small loads, providing appropriate protection for delicate electrical equipment.​

• Rated Voltage: It supports a rated voltage of 240V AC, which complies with the standard voltage levels of many industrial and commercial places. It can be widely used in various AC electrical systems with strong adaptability.​

• Breaking Capacity: It has a high short - circuit breaking capacity and can cut off large - current short - circuit faults in a short time. It ensures that in the event of extreme electrical faults, the fault point can be quickly isolated to prevent the further expansion of the fault range and protect the safety of the entire electrical system.​

• Number of Poles: It adopts a 3 - pole design, which can protect and control three - phase circuits simultaneously, meeting the protection requirements of three - phase electrical equipment and systems and ensuring the balanced operation and reliable protection of three - phase circuits.​

• Tripping Characteristics: It has a D - type tripping curve. The characteristics of this curve make the circuit breaker sensitive to short - circuit current and suitable for electrical equipment with large starting currents, such as motors. It can effectively avoid misoperation caused by the inrush current during equipment startup and quickly trip for protection when a real short - circuit fault occurs.​

• Installation Method: It is designed in a standard rail - mounting form, which is convenient and fast. It can be easily installed on the standard rails of various electrical control cabinets and distribution boxes, saving installation space and facilitating later maintenance and replacement operations.​

• High - Sensitivity Protection: It is extremely sensitive to current changes and can quickly and accurately detect overload and short - circuit currents, cutting off the circuit in a timely manner to protect electrical equipment from damage. It effectively reduces the risk of production interruption caused by electrical faults and improves the stability of system operation.​

• Reliable Breaking Performance: With a strong short - circuit breaking capacity, it can deal with complex and changeable electrical faults. In the case of large - current short - circuits, it can quickly cut off the circuit to avoid serious accidents such as fires, providing reliable protection for personnel and equipment safety.​

• Precise Tripping Control: The D - type tripping curve accurately matches equipment with large starting currents, ensuring both normal equipment startup and timely action in case of faults, improving the accuracy and reliability of protection and reducing unnecessary downtime for maintenance.​

• Convenient Installation and Maintenance: The standard rail - mounting method makes the installation process simple and efficient, requiring no complex tools or professional skills. At the same time, it facilitates later maintenance work. Once the circuit breaker fails, it can be quickly replaced, reducing maintenance costs.​

• Compact Design: The overall design of the product is compact, taking up little space. It is suitable for electrical control cabinets and distribution boxes with limited space. Without affecting the protection performance, it optimizes the space layout of the electrical system.​

• Industrial Automation Production Lines: It is used to protect various electrical equipment such as motors, sensors, and controllers on automated production lines, ensuring the stable operation of the production line in a complex electrical environment, avoiding production stagnation caused by electrical faults, and improving production efficiency and product quality.​

• Commercial Building Electrical Systems: In commercial buildings such as shopping malls and office buildings, it provides circuit protection for lighting systems, air - conditioning systems, elevator control systems, etc., ensuring stable power supply in commercial places and providing a safe and comfortable power - using environment for customers and staff.​

• Mechanical Equipment Manufacturing: As a key protection component in the internal electrical system of mechanical equipment, it protects the core components such as the driving motors and control systems of the equipment, preventing damage to the equipment due to electrical faults, extending the service life of the equipment, and reducing equipment maintenance costs.​

• Data Centers: Precision servers, network equipment, etc. in data centers have extremely high requirements for power stability. This miniature circuit breaker can effectively protect the power supply circuits of these devices, avoiding problems such as data loss and equipment damage caused by abnormal current and ensuring the normal operation of the data center.​

• Transportation Equipment: It is applied to the electrical systems of transportation equipment such as ships and rail transit vehicles, protecting various electrical equipment and ensuring the reliability of the electrical system during operation, providing support for transportation safety.

The structure and details of the product：

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