EATON AZ-3N-C20 Miniature Circuit Breaker 3P+N 20A 25kA AC

The EATON AZ-3N-C20 is a high-performance miniature circuit breaker engineered to provide robust electrical protection for three-phase systems with a neutral conductor. This 3P+N device is designed to safeguard electrical installations by effectively detecting and interrupting overloads and short circuits. With a rated current of 20A and a high breaking capacity of 25kA, it is built to handle demanding electrical environments, ensuring the integrity of downstream equipment and the safety of the entire distribution network.

Advantages

This circuit breaker stands out due to its high breaking capacity, which allows it to safely clear significant fault currents that might occur in industrial or large commercial settings. Its precise tripping characteristics ensure that the power supply is interrupted only when necessary, minimizing downtime and preventing nuisance tripping. The 3P+N configuration provides comprehensive protection for complex circuits, while the durable construction from EATON guarantees long-term reliability and consistent performance under continuous load conditions.

Suitable for

• Industrial electrical distribution boards
• Commercial building power systems
• Protection of three-phase motors and machinery
• Large-scale lighting and heating installations

This device may not be suitable for residential applications where a lower breaking capacity is sufficient and the 3P+N configuration is not required. It is also not intended for use in DC circuits, as it is specifically designed for AC electrical systems.

Key specifications

• Rated current: 20A
• Number of poles: 3P+N
• Breaking capacity: 25kA
• System type: AC
• Tripping characteristic: C-curve

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 enclosure. Ensure that the supply voltage and frequency match the device ratings before connection. Securely tighten all terminal connections to the manufacturer's specified torque to prevent overheating and ensure optimal electrical contact.

What to consider before purchase

• Verify that the 20A rating matches your circuit load requirements
• Ensure the 3P+N configuration is compatible with your wiring system
• Check that the 25kA breaking capacity meets the short-circuit current rating of your installation
• Confirm the physical space available in your distribution board for a multi-pole device

For optimal safety and longevity, regularly inspect the circuit breaker for signs of thermal stress or loose connections and ensure the distribution board is kept free of dust and moisture.