Eaton FAZ-B4-1N - 4 A, 480 V, 1-Pole Circuit Breaker | AmpState

The Eaton FAZ-B4-1N is a compact 4 A, 480 V, 1-pole molded case circuit breaker designed to shield your critical circuits from overcurrent and short-circuits. Built to slide seamlessly into panelboards and load centers, it helps you organize reliable protection without crowding your electrical spaces.

Key advantages that set this breaker apart

• Space-efficient design: A compact molded case footprint makes it easier to fit multiple breakers in crowded panels, optimizing wiring layout and labeling clarity.
• Thermal-magnetic trip unit: Delivers stable, repeatable protection by responding to both sustained overloads and instantaneous short circuits, reducing nuisance trips while maintaining safety.
• OEM-compatible: Precisely engineered to pair with matching Eaton OEM load centers and panelboards, ensuring dependable fit and performance in your existing system.
• Versatile application range: Suitable for residential, commercial, and light industrial environments where compact, reliable branch-circuit protection is required.
• Single-pole protection for targeted, reliable control of individual circuits, ideal for lighting, receptacle circuits, and controlled equipment runs in controlled environments.

Where and how you’ll use it

• Installing or upgrading panelboards in offices, retail spaces, or light manufacturing where 480 V systems are standard.
• Retrofits or new builds needing precise 4 A protection to guard branch circuits without overburdening the panel’s capacity.
• Applications requiring quick, predictable protection response to both overloads and short circuits, helping minimize downtime and equipment damage.

Specifications at a glance

• Manufacturer: Eaton
• Part Number: FAZ-B4-1N
• Type: Thermal-magnetic molded case circuit breaker
• Amperage Rating: 4 A
• Voltage Rating: 480 V
• Number of Poles: 1
• Application: Branch circuit overcurrent and short-circuit protection
• Ideal for: Residential, commercial, and light industrial panelboards and load centers

With the Eaton FAZ-B4-1N, you gain precise, dependable protection that respects panel space while delivering consistent performance across a range of demanding environments. When you need a reliable, space-conscious solution for protecting individual branch circuits in 480 V systems, this 1-pole breaker offers a straightforward, effective answer—protecting people, equipment, and ongoing operations with every trip curve and activation.