EATON AZ-4-B32 Miniature Circuit Breaker, 4-Pole, B-Characteristic, 32A, 25kA

The EATON AZ-4-B32 is a high-performance 4-pole miniature circuit breaker engineered to provide reliable protection for electrical distribution systems. Designed for demanding environments, this device effectively monitors current flow to prevent damage from overloads and short circuits. With its robust construction and high breaking capacity, it serves as a critical component in maintaining the integrity and safety of complex electrical installations in industrial and commercial settings.

Advantages

This miniature circuit breaker stands out due to its high 25kA breaking capacity, which allows it to handle significant fault currents safely. The B-characteristic tripping curve ensures a precise response to overcurrent conditions, providing optimal protection for sensitive equipment and wiring. Its 4-pole configuration makes it versatile for three-phase systems with a neutral conductor, ensuring comprehensive coverage across all phases. The EATON design prioritizes durability and consistent performance, minimizing the risk of nuisance tripping while maintaining high safety standards.

Suitable for

• Industrial electrical distribution boards
• Commercial building power systems
• Three-phase motor protection
• Complex electrical installations requiring high fault current handling

This circuit breaker may not be suitable for residential applications where a lower breaking capacity is sufficient and the physical dimensions might be too large for standard consumer units. It is also not intended for DC applications, as it is specifically designed for AC electrical systems.

Key specifications

• Number of poles: 4
• Rated current: 32A
• Tripping characteristic: B
• 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 an enclosure. Ensure that the supply voltage and frequency match the specifications of the breaker before connection. Securely tighten all terminal connections to the manufacturer's recommended torque settings to prevent overheating and ensure reliable electrical contact.

What to consider before purchase

• Verify that the 32A rating matches your circuit load requirements
• Ensure the 25kA breaking capacity is appropriate for your installation's prospective short-circuit current
• Check available space in your distribution board for a 4-pole device
• Confirm compatibility with your existing AC power system

For optimal longevity and safety, perform periodic inspections of the circuit breaker to ensure that all connections remain tight and that the device is free from dust or debris. Do not attempt to modify the internal mechanism of the breaker, as this will void safety certifications and compromise its protective function.