Eaton AZ-3-D80 Miniature Circuit Breaker, 3-Pole, D-Curve, 80A, 20kA

The Eaton AZ-3-D80 is a high-performance 3-pole miniature circuit breaker engineered for robust electrical distribution in industrial and commercial environments. This device is specifically designed to manage high-current loads while providing reliable protection against short circuits and overloads. With its D-type tripping characteristic, it is well-suited for applications involving equipment with high inrush currents, ensuring that the system remains operational without unnecessary nuisance tripping.

Advantages

This circuit breaker offers exceptional reliability and safety for demanding electrical installations. Its high breaking capacity of 20kA allows it to handle significant fault currents, protecting downstream equipment and wiring from damage. The 3-pole configuration makes it ideal for three-phase power systems, providing synchronized disconnection across all phases during a fault event. Its durable construction ensures long-term performance even in challenging industrial conditions.

Suitable for

• Industrial machinery and motor control centers
• Commercial electrical distribution panels
• Systems with high inrush current equipment
• Three-phase power distribution networks

When it may not be suitable

This circuit breaker is not intended for residential applications where lower current ratings are typically required. It is also not suitable for circuits that do not require the specific D-curve tripping characteristic, as it may not provide the necessary sensitivity for standard lighting or general-purpose household appliances.

Key specifications

• Number of poles: 3
• Rated current: 80A
• Tripping characteristic: D-curve
• Breaking capacity: 20kA
• Application: Industrial and commercial

How to use

The Eaton AZ-3-D80 must be installed by a qualified electrician in accordance with local electrical codes and safety regulations. It is designed for mounting onto a standard DIN rail within an electrical distribution board. Ensure that the supply cables are correctly sized for an 80A load and securely tightened to the terminals to prevent overheating. Once installed, the toggle switch can be used to manually energize or de-energize the circuit as needed.

What to consider before purchase

• Verify that the 80A rated current matches your circuit requirements
• Ensure the D-curve characteristic is appropriate for your connected load
• Confirm that the 20kA breaking capacity meets the fault level requirements of your installation
• Check available space in your distribution board for a 3-pole device

Usage recommendations

Regularly inspect the circuit breaker for signs of thermal damage or loose connections. If the breaker trips, investigate the cause of the fault before resetting the device. Do not attempt to bypass or modify the internal mechanism of the circuit breaker.