Eaton FAZ6-B5/3 Miniature Circuit Breaker 3P 5A B-Curve 6kA

The Eaton FAZ6-B5/3 is a professional-grade 3-pole miniature circuit breaker engineered to provide robust protection for electrical circuits in various environments. This device is designed to detect and interrupt overcurrents, including both overloads and short circuits, thereby preventing damage to wiring and connected equipment. With its precise B-curve tripping characteristic and a 6kA breaking capacity, it offers a reliable solution for maintaining the integrity and safety of power distribution systems in residential, commercial, and light industrial settings.

Advantages

This circuit breaker stands out due to its high manufacturing standards and consistent performance under load. The B-curve characteristic makes it particularly effective for applications where low-level short-circuit currents are expected, such as lighting and general-purpose circuits. Its compact 3-pole design allows for efficient space utilization in distribution boards, while the robust construction ensures long-term operational stability and durability. The device is easy to install and integrates seamlessly into standard DIN-rail mounting systems, providing a dependable safeguard for modern electrical installations.

Suitable for

• Residential electrical distribution boards
• Commercial office lighting circuits
• General-purpose power outlets
• Control panels requiring 3-phase protection

When it may not be suitable

This device is not intended for circuits with high inrush currents, such as those powering large motors or transformers, where a C or D-curve breaker would be more appropriate to prevent nuisance tripping. It is also not suitable for applications requiring a breaking capacity higher than 6kA.

Key specifications

• Number of poles: 3
• Rated current: 5A
• Tripping characteristic: B-curve
• Breaking capacity: 6kA
• Mounting type: DIN rail

How to use

The Eaton FAZ6-B5/3 should be installed by a qualified electrician in accordance with local electrical codes and safety regulations. The device is designed to be snapped onto a standard 35mm DIN rail within a distribution enclosure. Ensure that the supply cables are connected to the top terminals and the load cables to the bottom terminals, tightening the screws to the manufacturer-specified torque to ensure a secure electrical connection. Once installed, the toggle switch can be used to manually isolate the circuit for maintenance or to reset the breaker after a fault has been cleared.

What to consider before purchase

• Verify that the 5A rated current matches the requirements of your specific circuit load.
• Ensure the B-curve characteristic is compatible with the connected equipment.
• Confirm that the 6kA breaking capacity is sufficient for the prospective short-circuit current at the installation point.
• Check the available space in your distribution board for a 3-pole module.

Usage recommendations: Regularly inspect the circuit breaker for signs of thermal damage or loose connections. It is recommended to perform a functional test of the tripping mechanism periodically to ensure continued protection.