Eaton FAZ-B12/1 Miniature Circuit Breaker, 1-Pole, B-Curve, 12A, 15kA

The Eaton FAZ-B12/1 is a professional-grade 1-pole miniature circuit breaker engineered to provide robust protection for electrical circuits. With a rated current of 12A and a B-curve tripping characteristic, this device is specifically designed to detect and interrupt overloads and short circuits in AC electrical systems. Its high breaking capacity of 15kA ensures reliable performance and enhanced safety for both residential and commercial infrastructure.

Advantages

This circuit breaker stands out due to its high breaking capacity, which allows it to handle significant fault currents safely. The B-curve characteristic is optimized for applications where low-level short-circuit protection is required, such as lighting and general-purpose circuits. Its compact 1-pole design facilitates easy installation in standard distribution boards, while the durable construction ensures long-term operational reliability and consistent protection against electrical hazards.

Suitable for

• Residential lighting and power outlet circuits
• Commercial building electrical distribution systems
• Protection of sensitive electronic equipment
• General-purpose AC electrical installations

When it may not be suitable

This device is not intended for use in DC circuits or high-inrush current applications, such as large motor starting, where a C or D curve breaker would be more appropriate. It should not be installed in environments exceeding its specified voltage or temperature ratings.

Key specifications

• Number of poles: 1
• Rated current: 12A
• Tripping characteristic: B-curve
• Breaking capacity: 15kA
• System type: AC

How to use

The Eaton FAZ-B12/1 is designed for mounting on a standard DIN rail within an electrical distribution panel. Installation should be performed by a qualified electrician in accordance with local electrical codes. The device features clear terminal connections for secure wiring. Once installed, the toggle switch allows for manual operation to disconnect or reconnect the circuit as needed, while the internal mechanism automatically trips during an overload or short-circuit event.

What to consider before purchase

• Verify that the 12A rating matches your circuit load requirements
• Ensure the B-curve characteristic is suitable for your specific load type
• Confirm the available space in your distribution board for a 1-pole device
• Check that the 15kA breaking capacity meets the requirements of your electrical installation

Usage recommendations

Always ensure the power supply is disconnected before attempting installation or maintenance. Regularly inspect the breaker for signs of physical damage or heat discoloration to maintain optimal safety standards.