EATON AZ-D80 Miniature Circuit Breaker, 1P, D-Curve, 80A, 20kA

The EATON AZ-D80 is a robust 1-pole miniature circuit breaker engineered to provide dependable electrical protection in demanding environments. With a rated current of 80A and a high breaking capacity of 20kA, this device is specifically designed to handle the rigorous requirements of industrial and commercial power distribution systems. Its D-curve tripping characteristic makes it particularly effective for circuits that experience significant inrush currents, ensuring that the system remains stable while providing essential safety against short circuits and overloads.

Advantages

This miniature circuit breaker offers exceptional reliability through its high breaking capacity, which allows it to safely interrupt high fault currents common in industrial settings. The D-curve characteristic is specifically optimized for loads with high starting currents, preventing nuisance tripping during normal operation. Its compact 1-pole design facilitates efficient space utilization within electrical panels, while the high-quality construction ensures long-term operational stability and consistent performance under continuous load conditions.

Suitable for

• Industrial machinery with high starting currents
• Large motor circuits
• Commercial power distribution boards
• Heavy-duty electrical installations

When it may not be suitable

This device is not intended for standard residential lighting or small appliance circuits, as the D-curve tripping characteristic is too insensitive for these applications. It is also not suitable for systems requiring a lower rated current, as using an 80A breaker on smaller wiring can lead to inadequate protection against overloads.

Key specifications

• Number of poles: 1
• Rated current: 80A
• Tripping characteristic: D-curve
• Breaking capacity: 20kA
• Application: AC systems

How to use

The EATON AZ-D80 should be installed by a qualified electrician onto a standard DIN rail within a compatible distribution board. Ensure that the supply voltage and the connected load are compatible with the breaker's specifications. The cables must be securely fastened to the terminals according to the manufacturer's torque requirements to prevent overheating. Once installed, the device acts as an automatic switch that monitors the circuit for electrical faults.

What to consider before purchase

• Verify that the 80A rating matches the requirements of your electrical circuit.
• Ensure the D-curve characteristic is appropriate for your specific load type.
• Check that the 20kA breaking capacity meets the short-circuit current levels of your installation.
• Confirm that the mounting space in your distribution board accommodates a 1-pole device.

Usage recommendations

Regularly inspect the circuit breaker for signs of wear or heat damage and ensure that all terminal connections remain tight to maintain optimal safety and performance.