Eaton FAZ-K25 3N 25 A 480 V 3-Pole Circuit Breaker

Meet the Eaton FAZ-K25/3N—a 25 A, 480 V, 3-pole molded case circuit breaker engineered to protect branch circuits with precision in panelboards and load centers. Its compact, space-saving design pairs with a reliable thermal-magnetic trip unit to deliver stable, repeatable protection for both overloads and short circuits.

• Space-efficient molded-case design optimizes panel real estate, letting you fit more protective circuitry without crowding the enclosure.
• Thermal-magnetic trip unit combines accurate thermal sensing with rapid magnetic tripping to guard against sustained overcurrrent and high-energy fault events—reducing conductor stress and potential equipment damage.
• 3-pole operation at 480 V ideal for 3-phase systems common in commercial and light-industrial applications, including motors, HVAC, and distribution feeders.
• OEM-compatible designed to work seamlessly with matching Eaton OEM loadcenters and panelboards for straightforward installation and reliable electrical continuity.
• Versatile applications suitable for residential, commercial, and light-industrial environments where dependable branch-circuit protection is essential.

Technical snapshot

• Manufacturer: Eaton
• Part number: FAZ-K25/3N
• Type: Thermal-magnetic molded case circuit breaker (MCCB)
• Amperage rating: 25 A
• Voltage rating: 480 V
• Number of poles: 3
• Primary purpose: Branch circuit overcurrent and short-circuit protection

Who should consider the FAZ-K25/3N? electrical professionals and facilities managers who design or upgrade panel headers, feeders, and control panels for 3-phase workloads. If you’re replacing a dated MCCB or planning a panel expansion in offices, retail spaces, or light industrial setups, this breaker offers a solid balance of compact size, robust protection, and compatibility with Eaton’s panel ecosystem.

Practical considerations and best-use tips:

• Match the breaker to the load: 25 A rating is suitable for circuits where normal operating current remains well below the 25 A threshold; for higher-demand feeders, consider a higher amperage device.
• Verify panel compatibility: use with OEM Eaton loadcenters and panelboards to ensure alignment with bus stabs and mounting standards.
• Plan for 3-phase protection: use 3-pole MCCBs like the FAZ-K25/3N when feeding 3-phase equipment to ensure synchronized protection across all phases.
• Follow electrical codes and torque specs: secure connections per manufacturer guidelines and local regulations to maintain reliable performance and safe operation.

In short, the Eaton FAZ-K25/3N is a purpose-built solution for dependable 3-phase protection at 480 V, delivering precise thermal-magnetic tripping in a compact package that fits thoughtfully into panelboards and loadCenters. It’s a choice that supports long-term reliability, streamlined installation, and clear, actionable protection for commercial and light-industrial electrical systems.