The QBHW3050HT is a high interrupting capacity circuit breaker manufactured by Eaton Bussmann. It is designed to provide reliable protection for electrical circuits against overloads and short circuits. This breaker is commonly used in industrial and commercial applications where high fault currents are a concern.

Applications:

• Industrial Control Panels: Used as a main or branch circuit breaker in industrial control panels to protect sensitive equipment.
• Commercial Buildings: Provides circuit protection in lighting, HVAC, and power distribution systems within commercial buildings.
• Data Centers: Protects critical power circuits in data centers to prevent downtime due to electrical faults.
• Manufacturing Facilities: Installed in manufacturing plants to safeguard machinery and electrical infrastructure.
• Power Distribution Boards: Serves as a key component in power distribution boards, ensuring the safe distribution of electricity.

Features:

• High Interrupting Capacity: Rated to safely interrupt high levels of fault current, preventing damage to the electrical system.
• Thermal-Magnetic Trip Mechanism: Employs a thermal-magnetic trip mechanism for reliable overload and short-circuit protection.
• Quick-Trip Response: Provides fast tripping action to minimize the duration of fault currents and reduce potential damage.
• Durable Construction: Built with robust materials to withstand harsh industrial environments.
• Easy Installation: Designed for straightforward installation and maintenance.

Benefits:

• Enhanced Safety: Protects personnel and equipment from electrical hazards.
• Reduced Downtime: Minimizes downtime by quickly clearing faults and preventing damage to the electrical system.
• Improved System Reliability: Provides dependable circuit protection, ensuring the reliable operation of electrical equipment.
• Compliance with Standards: Meets relevant industry standards for circuit protection.
• Cost-Effective Protection: Offers a cost-effective solution for safeguarding electrical circuits against overloads and short circuits.

Additional Details:

The QBHW3050HT's specific interrupting rating (e.g., 30kA, 65kA) and voltage rating are critical parameters that must match the application's requirements. The frame size, number of poles (typically three), and terminal type also vary depending on the specific model. Consulting the official datasheet from Eaton Bussmann is essential for detailed specifications and proper installation guidelines. The thermal-magnetic trip mechanism combines a bimetallic strip for overload protection and an electromagnetic coil for short-circuit protection, providing comprehensive circuit protection.