Eaton FAZD Series D-Curve Mini...
IN STOCK (leaves warehouse same day if ordered before 3pm ET)
$260.26
Eaton FAZD Series D-Curve Miniature Circuit Breaker, 277/480V AC

Eaton FAZD Series D-Curve Miniature Circuit Breaker, 277/480V AC

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Model: FAZ-D10/1-NA-SP

In Stock (leaves warehouse same day if ordered before 3pm ET)

$260.26
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Eaton FAZD Series D-Curve Miniature Circuit Breaker, 277/480V AC

The Eaton FAZD Series D-Curve Miniature Circuit Breaker is an industrial-grade overcurrent protection device rated at 277/480-Volt AC and 96-Volt DC. Built for demanding commercial and industrial electrical systems, this breaker delivers dependable circuit protection for equipment and branch circuits operating across multiple voltage classes. As part of Eaton's FAZD Series, it is engineered for consistent trip response in panelboards, machine control panels, and industrial distribution equipment, and is available in 1-Pole and 2-Pole configurations to match single- and multi-conductor circuit requirements. The dual AC/DC voltage rating makes this breaker a versatile choice for facilities running mixed power systems, while its miniature circuit breaker footprint allows it to fit standard panelboard and enclosure layouts without custom modification.

Key Features

  • Multiple Pole Configurations: Available in 1-Pole and 2-Pole configurations to match single- and multi-conductor circuit requirements.
  • Amperage Options: Offered across a range of amperage ratings for precise overcurrent protection on industrial and control circuits.
  • 277/480-Volt AC Rating: Suitable for use on higher-voltage AC distribution systems common in commercial and industrial facilities.
  • 96-Volt DC Rating: Also rated for DC applications, giving installers flexibility across AC and DC circuit designs.
  • FAZD Series Design: Part of Eaton's FAZD miniature circuit breaker platform, built for industrial control and distribution use.
  • Miniature Circuit Breaker Format: Compact footprint simplifies installation in panelboards and enclosures with limited space.
  • Industrial-Grade Build: Constructed for the demands of commercial and industrial branch-circuit and equipment protection.

Technical Specifications

  • Product Type: Circuit Breaker
  • Voltage Rating: 277/480-Volt AC, 96-Volt DC
  • Series: FAZD
  • Pole Configurations: 1-Pole, 2-Pole

Typical Applications

  • Industrial Panelboards and Load Centers
  • Machine and Motor Control Panels
  • Commercial Electrical Distribution Systems
  • Multi-Voltage Industrial Equipment Circuits
  • Renovation and New Industrial Construction Projects

Why Eaton?

Eaton is a trusted name in industrial electrical protection, and the FAZD Series D-Curve miniature circuit breaker reflects that reputation with a design rated for both 277/480-Volt AC and 96-Volt DC applications. For electricians and facility engineers who need dependable overcurrent protection across varied voltage systems and pole configurations, this Eaton circuit breaker delivers the consistent, code-conscious performance industrial installations demand. Choosing the FAZD Series from Eaton means selecting a component built to keep panelboards, control circuits, and connected equipment protected against overcurrent conditions across both AC and DC voltage applications.

Manufacturer Resources

Product Specs

Product Type:
Circuit Breaker
Voltage Rating:
277/480V
Series:
FAZD
Department:
Electrical
Product Group:
Circuit Protection
Product Subgroup:
Circuit Breakers

Eaton FAZ-D10/1-NA-SP – Frequently Asked Questions

1) What does the D curve on the Eaton FAZD breaker mean, and when should I use it instead of a C curve?
D-curve breakers hold through high inrush without nuisance tripping, which is why the FAZD gets specified on transformer primaries, motor starters, and switch-mode supplies that draw heavy momentary current at startup. If the load is general lighting, receptacles, or resistive equipment, a C-curve or B-curve breaker is the better match, since a D curve lets more fault current through before it trips magnetically. The FAZD Series is the D-curve version of Eaton's FAZ miniature breaker platform.
2) Can the Eaton FAZD breaker be used on a 480V three-phase panel?
The FAZD is rated 277/480V AC, so it covers 277V line-to-neutral and 480V line-to-line on a 480Y/277 system. It comes in 1-pole and 2-pole only, so a single breaker handles a 277V single-pole circuit or a 480V two-wire circuit. A true three-phase 480V load needs a 3-pole device, which this series configuration does not cover.
3) Which amperages and pole counts does the Eaton FAZD come in?
Four configurations are offered: 5A and 10A single-pole (models FAZD51NASP and FAZD101NASP), and 2A and 5A two-pole (FAZD22NA and FAZD52NA). These are low-amperage ratings, which is typical for control-circuit and small equipment protection rather than feeder or main breaker duty.
4) What is the exact Eaton part number to order for a 10 amp single-pole D-curve breaker?
Order Eaton MPN FAZ-D10/1-NA-SP, catalogued as model FAZD101NASP. The 5A single-pole equivalent is FAZ-D5/1-NA-SP. For two-pole, the numbers are FAZ-D2/2-NA (2A) and FAZ-D5/2-NA (5A). Note the -SP suffix appears on the single-pole items and not on the two-pole ones, so copy the number exactly when placing a purchase order.
5) Can I use two 1-pole FAZD breakers instead of one 2-pole for a 480V circuit?
No. A 480V two-wire circuit needs both ungrounded conductors to open together, and that requires the common trip of the 2-pole device, FAZ-D2/2-NA or FAZ-D5/2-NA. Two separate single-poles will not trip in common and leave one leg energized during a fault on the other.
6) Will this Eaton breaker work on a DC control circuit?
Yes, within limits. The FAZD carries a 96V DC rating alongside its AC rating, which covers 24V, 48V, and similar DC control and battery circuits found in industrial panels. Anything above 96V DC is outside what this breaker is rated for.
7) Is the Eaton FAZD a plug-on breaker or does it mount on DIN rail?
The FAZD is a miniature circuit breaker in the standard modular format, so it snaps onto DIN rail in a control enclosure or seats in a panelboard built for that format. It is not a plug-on bolt-in breaker for a residential load center bus. If you are replacing a breaker in a Eaton BR or CH loadcenter, this is the wrong family.
8) Will a FAZD breaker protect a small motor from nuisance tripping at startup?
That is the case the D curve is built for. Motors pull locked-rotor current many times full-load at startup, and a D-curve magnetic element rides through it where a lower-curve breaker would trip. The FAZD is offered only at 2A, 5A, and 10A, so it suits small motors, motor control circuits, and starter coils rather than a large motor branch. Size it against the motor nameplate FLA, not just the horsepower.
How fast can I get the Eaton FAZ-D10/1-NA-SP delivered?
Most orders ship the same day from our distribution partners, with quick delivery throughout the continental U.S. Need it urgently? Contact Us for expedited shipping options.
Can I return it if it doesn’t work for me?
Yes—ZenSupply offers a hassle-free return policy. If the product isn’t the right fit, reach out to our support team for a return authorization or setup a return by following our return instructions.
Does the Eaton FAZ-D10/1-NA-SP come with a warranty?
Absolutely. The Eaton FAZ-D10/1-NA-SP is backed by a manufacturer’s warranty. For full warranty terms, check the product documentation or Contact Us.
How do I get technical support or installation help for the Eaton FAZ-D10/1-NA-SP?
You can call, text, or email our expert support team for fast answers. We’re here to help with product selection, installation tips, and troubleshooting. Contact Us
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