Eaton FAZ-D3/1-NA-SP 3A 277 V Circuit Breaker

Introducing the Eaton FAZ-D3/1-NA-SP 3A 277 V Circuit Breaker — a compact, single-pole overcurrent protector built for North American panels. With a precise 3 amp rating and a 277-volt maximum, this device safeguards small but essential circuits from overloads and short circuits, helping keep commercial electrical systems safe and reliable.

Key specifications

• Current rating: 3 A
• Voltage rating: 277 V
• Configuration: 1-pole (SP) – NA model
• Part number: FAZ-D3/1-NA-SP
• Manufacturer: Eaton

Why this breaker stands out

Designed as part of Eaton’s FAZ family, the Eaton FAZ-D3/1-NA-SP 3A 277 V Circuit Breaker delivers dependable overcurrent protection for small-draw circuits in commercial environments. Its 1-pole configuration is tailored for dedicated branch circuits, while the 277 V rating aligns with common commercial lighting and control applications. This combination provides a predictable, reliable response when electrical faults occur, helping protect wiring, devices, and downstream equipment without unnecessary interruptions.

Ideal use cases

• Protection for 277 V lighting circuits in offices, retail spaces, and warehouses
• Small control circuits within commercial panels and enclosures
• Dedicated protection for subcircuits that require a compact, single-pole device

Installation and compatibility tips

Ensure your panel accepts FAZ-D3/1-NA-SP devices and that the application matches a 1-pole, 277 V protective device. For safe installation, power down the main supply and follow industry-standard wiring practices. Confirm labeling in your panel indicates compatibility with the FAZ-D3/1-NA-SP series before purchasing.

Maintenance and practical guidance

Keep a spare FAZ-D3/1-NA-SP on hand for quick replacements in planned maintenance or emergency downtime. Store breakers in their original packaging, inspect for signs of wear or corrosion before installation, and replace any unit that shows physical damage or has an unclear trip history.

Summary

The Eaton FAZ-D3/1-NA-SP 3A 277 V Circuit Breaker is a purpose-built, single-pole protective device designed to shield small but vital commercial circuits operating at 277 V. Its precise 3 A rating and North American NA-SP configuration deliver reliable, straightforward protection that integrates smoothly with Eaton panels—helping facilities run safely, efficiently, and with fewer unexpected outages.