EATON AZ-2-B100 Miniature Circuit Breaker, 2-Pole, B-Curve, 100A, 25kA

The EATON AZ-2-B100 is a robust 2-pole miniature circuit breaker engineered to provide dependable protection for electrical circuits in demanding environments. With a rated current of 100A and a high breaking capacity of 25kA, this device is specifically designed to manage significant electrical loads while maintaining system integrity. Its B-curve tripping characteristic ensures rapid response to overcurrent conditions, making it an essential component for safeguarding industrial and commercial power distribution networks against the risks of short circuits and overloads.

Advantages

This circuit breaker stands out due to its high breaking capacity, which allows it to handle substantial fault currents safely, thereby protecting downstream equipment from damage. The B-curve characteristic is optimized for applications where moderate surge currents are expected, providing a balanced approach between sensitivity and operational continuity. Its durable construction ensures long-term reliability in professional electrical installations, reducing the need for frequent maintenance and enhancing overall system safety.

Suitable for

• Industrial power distribution panels
• Commercial building electrical systems
• Protection of lighting and heating circuits
• AC electrical installations requiring high-current capacity

This device may not be suitable for residential applications where lower current ratings are typically required, or for circuits with high inrush currents that might cause nuisance tripping with a B-curve characteristic. It is also not intended for use in DC systems unless specifically rated for such applications.

Key specifications

• Number of poles: 2
• Rated current: 100A
• Tripping characteristic: B-curve
• Breaking capacity: 25kA
• System 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 a distribution board. Ensure that the supply voltage and frequency are compatible with the device ratings before connection. Secure all terminal connections firmly to prevent overheating during operation.

What to consider before purchase

• Verify the total load requirements of your circuit
• Ensure compatibility with existing DIN rail enclosures
• Confirm the required breaking capacity for your specific installation site
• Check local regulations regarding the use of 100A circuit breakers

Regularly inspect the circuit breaker for signs of physical damage or discoloration. It is recommended to perform periodic testing of the tripping mechanism to ensure continued operational readiness.