Eaton FAZ-D4/1N 4A 480V 1-Pole Circuit Breaker

Eaton FAZ-D4/1N is a compact, reliable 4 A, 480 V, 1-pole molded case circuit breaker designed to protect single‑phase branch circuits in panelboards and load centers. Built for dependable overcurrent and short‑circuit protection, this device helps keep commercial, light industrial, and residential electrical systems safe and up to code.

Why this breaker stands out

• Compact molded-case design maximizes panel space and simplifies installation in tight electrical cabinets.
• Thermal-magnetic trip unit delivers stable, repeatable protection by reacting to both overloads and short circuits without nuisance trips.
• 1-pole, 4 A, 480 V configuration makes it ideal for safeguarding single‑phase loads on higher‑voltage distribution networks.
• OEM panel compatibility engineered to integrate with matching Eaton OEM load centers and panelboards for a seamless fit.
• Versatile applications appropriate for residential, commercial, and light industrial environments requiring reliable 480 V single‑phase protection.

Where and how you’ll use it

This breaker is purpose-built for protecting branch circuits that run on 480 V, including lighting, control circuits, small motors, and other general loads in panelboards and load centers. It serves as a precise, low‑current protection option in spaces where panel density matters, while still delivering robust short‑circuit protection when faults occur.

Key features and benefits

• Reliable protection with a thermal-magnetic trip mechanism that responds quickly to faults, reducing damage to wiring and equipment.
• Panel-ready design tailored for Eaton FAZ family panels and compatible OEM enclosures, simplifying replacement and upgrades.
• Single-pole simplicity ideal for dedicated 480 V single‑phase circuits, helping installers target specific loads without overkill.
• Durable construction built to withstand routine panel switching and the demands of commercial and light industrial environments.

Specifications at a glance

• Manufacturer: Eaton
• Part Number: FAZ-D4/1N
• 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/load centers

Practical tips for installation and use

• Confirm that your panelboard or load center is rated for 480 V and accepts 1‑pole FAZ devices before installation.
• Match the amperage rating to the protected load’s maximum operating current to minimize nuisance trips while ensuring safety margins.
• When replacing an existing breaker, ensure the FAZ-D4/1N’s physical and electrical characteristics align with the panel’s electrical design and listing.
• Consult local electrical codes and the panel manufacturer’s instructions to verify compatibility and installation requirements.