Eaton FAZ-B20/2 Miniature Circuit Breaker, 2-Pole, B-Curve, 20A, 15kA

The Eaton FAZ-B20/2 is a high-performance 2-pole miniature circuit breaker engineered to provide robust protection for electrical circuits in various environments. This device is designed to detect and interrupt overcurrents, effectively safeguarding wiring and connected equipment from the risks associated with overloads and short circuits. With its precise B-curve tripping characteristic and a 20A rated current, it ensures reliable operation in modern electrical distribution systems.

Advantages

This circuit breaker stands out due to its high breaking capacity of 15kA, which allows it to handle significant fault currents safely. The 2-pole configuration makes it suitable for protecting both phase and neutral conductors or two-phase circuits, providing comprehensive coverage. Its compact design facilitates easy installation in standard distribution boards, while the durable construction ensures long-term reliability and consistent performance under demanding conditions.

Suitable for

• Residential electrical distribution boards
• Commercial building power systems
• Protection of lighting circuits
• General purpose electrical installations
• Control panels requiring reliable overcurrent protection

When it may not be suitable

This device is not intended for use in circuits where the starting current of connected equipment significantly exceeds the B-curve tripping threshold, such as large motors or heavy industrial machinery. It is also not suitable for direct current (DC) applications unless specifically rated for such use.

Key specifications

• Number of poles: 2
• Rated current: 20A
• Tripping characteristic: B-curve
• Breaking capacity: 15kA
• Mounting type: DIN rail

How to use

The Eaton FAZ-B20/2 is designed for mounting onto a standard 35mm DIN rail within an electrical enclosure. Installation should be performed by a qualified electrician in accordance with local electrical codes. The device features screw terminals for secure wire connection. Ensure that the supply voltage and load requirements are compatible with the device specifications before finalizing the installation.

What to consider before purchase

• Verify that the 20A rating matches your circuit load requirements
• Ensure the B-curve characteristic is appropriate for your specific application
• Confirm that the 15kA breaking capacity meets the safety standards of your electrical installation
• Check available space in your distribution board for a 2-pole device

Usage recommendations

Regularly inspect the circuit breaker for any signs of physical damage or discoloration. It is recommended to test the functionality of the device periodically to ensure it remains operational. If the breaker trips, investigate the cause of the overload or short circuit before resetting the switch.