Moeller FAZ-C4/3-NA - 4A, 480VAC, 3-Pole, Miniature Circuit Breaker (MCB)

Meet the Moeller FAZ-C4/3-NA — a compact, three-pole miniature circuit breaker engineered for reliable overcurrent protection in demanding electrical environments. With a 4 A rating and a 480 VAC capacity, this MCB is built to handle modern three-phase power distribution with precision and confidence.

• Current rating: 4 A
• Voltage rating: up to 480 VAC
• Poles: 3-Pole configuration for balanced three-phase protection
• Breaker type: Miniature Circuit Breaker (MCB)
• Applications: panelboards, switchboards, and control panels
• Ideal for: industrial, commercial, and OEM setups requiring dependable overcurrent protection

Why this matters in real-world systems: the 3-pole design ensures coordinated protection across all three phases, reducing the risk of uneven loading and nuisance trips. The 4 A current rating is ideal for protecting smaller control circuits, lighting feeders, or segmented loads within a larger distribution scheme, while the 480 VAC rating provides a robust safety margin for typical industrial power networks and motor control loads.

Who should consider the FAZ-C4/3-NA: engineers and technicians designing or upgrading distribution panels, motor control centers, or OEM equipment that demand compact, reliable overcurrent protection with precise trip performance. It’s particularly well-suited for spaces where panel density matters and three-phase protection is essential.

Practical use scenarios and benefits:

• Mount in panelboards or switchboards to protect three-phase feeder circuits from overloads and short circuits
• Integrate into control panels where compact, modular protection helps maximize available enclosure space
• Ideal for OEM applications requiring a dependable, ready-to-install MCB with a clear current and voltage specification
• Streamlines maintenance and replacement with a familiar Moeller/MCCB form factor and proven reliability

Compared to other single- or two-pole protective devices, the FAZ-C4/3-NA delivers coordinated three-phase protection in a compact package, reducing wiring complexity and enabling cleaner, safer electrical distributions. Its specification—4 A at 480 VAC across three poles—translates to precise protection for critical loads while maintaining system uptime and safety.