Eaton FAZ-C20/4 Miniature Circuit Breaker, 4-Pole, C-Curve, 20A, 15kA

The Eaton FAZ-C20/4 is a robust 4-pole miniature circuit breaker engineered to provide dependable protection for electrical circuits in demanding environments. This device is designed to safeguard electrical distribution systems by effectively interrupting current flow during short circuits or overloads, thereby preventing damage to connected equipment and ensuring overall system safety.

Advantages

This circuit breaker offers high operational reliability due to its advanced design and construction. The 15kA breaking capacity allows it to handle significant fault currents, making it a secure choice for industrial and commercial installations. Its C-curve tripping characteristic is specifically optimized for applications with moderate inrush currents, providing a balanced approach between sensitivity and operational continuity. The 4-pole configuration allows for the simultaneous disconnection of all phases and the neutral, enhancing safety during maintenance or fault conditions.

Suitable for

• Industrial electrical distribution boards
• Commercial building power systems
• Protection of motors and lighting circuits with moderate inrush currents
• Three-phase electrical installations requiring neutral switching

When it may not be suitable

This device is not intended for residential applications where a lower breaking capacity or a different tripping characteristic, such as B-curve, might be more appropriate for standard household loads. It is also not suitable for DC circuits unless specifically rated for such use by the manufacturer.

Key specifications

• Rated current: 20A
• Number of poles: 4
• Tripping characteristic: C-curve
• Breaking capacity: 15kA
• Mounting type: DIN rail

How to use

The Eaton FAZ-C20/4 should be installed by a qualified electrician in accordance with local electrical regulations. The device is designed for mounting onto a standard 35mm DIN rail within a distribution enclosure. Ensure that the supply cables are securely connected to the input terminals and that the load cables are connected to the output terminals, observing the correct torque settings to prevent loose connections. Once installed, the breaker can be manually toggled to the ON position to energize the circuit.

What to consider before purchase

• Verify that the 20A rated current matches the requirements of your specific load.
• Ensure the 15kA breaking capacity is sufficient for the prospective short-circuit current at the point of installation.
• Confirm that the C-curve characteristic is compatible with the starting currents of your connected equipment.
• Check the available space in your distribution board for a 4-pole module.

Usage recommendations

Regularly inspect the circuit breaker for signs of thermal damage or loose connections. It is recommended to perform periodic testing of the tripping mechanism to ensure continued operational readiness and safety within the electrical system.