EATON AZ-4-C50 Miniature Circuit Breaker, 4-Pole, C-Curve, 50A, 25kA

The EATON AZ-4-C50 is a robust 4-pole miniature circuit breaker engineered to provide dependable protection for electrical circuits in demanding environments. With a rated current of 50A and a high breaking capacity of 25kA, this device is specifically designed to handle significant electrical loads while ensuring the safety of connected equipment and infrastructure. Its C-curve tripping characteristic makes it a versatile choice for applications where moderate inrush currents are expected, providing a balance between sensitivity and operational stability.

Advantages

This circuit breaker stands out due to its high breaking capacity, which allows it to safely interrupt high fault currents that might occur in industrial power distribution systems. The 4-pole configuration provides comprehensive protection by disconnecting all phases and the neutral conductor, ensuring complete isolation during maintenance or fault conditions. Its durable construction and reliable tripping mechanism minimize the risk of nuisance tripping while maintaining high performance standards in commercial and industrial settings.

Suitable for

• Industrial power distribution panels
• Commercial building electrical systems
• Protection of motors and transformers with moderate inrush currents
• Main circuit protection in sub-distribution boards

This device may not be suitable for residential applications where lower breaking capacities are sufficient and space is limited. It is also not intended for use in DC circuits, as it is specifically designed for AC electrical installations.

Key specifications

• Number of poles: 4
• Rated current: 50A
• Tripping characteristic: C-curve
• Breaking capacity: 25kA
• Voltage type: AC

Installation should be performed by a qualified electrician in accordance with local electrical codes. The device is typically mounted on a standard DIN rail within an enclosure. Ensure that the supply voltage and frequency match the specifications of the breaker before connection. Tighten all terminal screws to the manufacturer's specified torque to prevent overheating and ensure a secure electrical connection.

What to consider before purchase

• Verify that the 50A rating matches your circuit requirements
• Ensure the 25kA breaking capacity is appropriate for your installation's prospective short-circuit current
• Confirm that the 4-pole design is required for your specific wiring configuration
• Check available space in your distribution board for a 4-module wide device

Usage recommendations: Regularly inspect the circuit breaker for signs of thermal damage or loose connections. Test the device periodically to ensure the mechanical tripping mechanism remains functional. Do not exceed the rated current capacity to avoid premature wear or unexpected tripping.