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Eaton / Cutler-Hammer FAZ-D5/1-NA-SP Miniature Circuit Breaker

  • 5A
  • 1 Pole
  • DIN Rail
Eaton / Cutler-Hammer FAZ-D5/1-NA-SP
Miniature Circuit Breaker
Brand Eaton / Cutler-Hammer
SKU FAZ-D5/1-NA-SP
Select Item Condition
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  • 5A
  • 1 Pole
  • DIN Rail

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Eaton / Cutler-Hammer FAZ-D5/1-NA-SP - 5A 1 Pole Miniature Circuit Breaker

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$98.60 In Stock

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Description

Engineered for high-inrush applications, the Eaton FAZ-D5/1-NA-SP is a 1-pole, 5A miniature circuit breaker. It delivers reliable thermal-magnetic protection for commercial and motor control circuits. This unit installs into standard DIN rail systems and industrial control panels. It features box lug terminals and supports reverse feed capabilities for flexible wiring. Rated 10 kAIC at 277VAC, this UL 489 branch protector utilizes a D-curve trip characteristic to handle motors and transformers.

Specifications

Key specifications
Brand Eaton / Cutler-Hammer
Part Number FAZ-D5/1-NA-SP
Series FAZ
Amperage 5A
Poles 1
Mounting Style DIN Rail
Voltage 277VAC, 48VDC
Phase 1
AIC Rating 10kA @ 277VAC, 10kA @ 48VDC
Fit and installation
Frame Type FAZ
Terminal Type Box Lugs
For Use With DIN Rail Systems, Industrial Control Panels
Wire Gauge 18-6 AWG (1 wire), 18-10 AWG (2 wires)
Max Wire 6 AWG
Min Wire 18 AWG
Protection and operation
Trip Technology Thermal Magnetic
Trip Function Code LI
Trip Function Long-Time, Instantaneous
Trip Curve D
Trip Adjustability Fixed
Standards and features
Available Options Auxiliary Switch, Shunt Trip, Undervoltage Release, Padlock Attachment, Busbar System
Accessories Single Package
Standards CSA C22.2 No. 5, IEC 60947-2, UL 489
Approval ABS, CE, CSA, DNV, IEC, Lloyd's, RoHS, UL, VDE
Temp Rating -25C to 75C
Construction Features Current Limiting, HACR Rated, SWD Rated, Trip-Free Mechanism, Visual Trip Indicator, Reverse Feed, RoHS Compliant

Product FAQs

7 answers
What applications require the D-curve trip characteristic on this FAZ breaker?

The D-curve magnetic trip point operates at 10 to 20 times the rated current. It is specifically designed for high inductive loads like motors, transformers, and power supplies where significant inrush current is expected during startup.

Is the Eaton FAZ-D5/1-NA-SP approved for reverse feed wiring?

Yes, power can be supplied to either the line or the load side terminals, offering wiring flexibility inside densely packed industrial control panels.

What are the benefits of a current limiting design in this breaker?

The current limiting feature allows the breaker to clear short circuits in under half a cycle. This rapid response restricts peak let-through current, significantly reducing the thermal and magnetic stress on downstream wiring and equipment.

Can this breaker serve as a primary branch circuit protector?

Yes, because it carries a UL 489 listing, it is fully rated for primary branch circuit protection rather than just supplementary protection. This makes it suitable for motor control circuits, HVAC equipment, and control instrumentation.

How much DIN rail width is required for mounting this unit?

This single-pole breaker requires 17.7 millimeters of physical width on a standard 35mm DIN rail.

Does this miniature circuit breaker have a trip-free mechanism?

Yes. The trip-free design ensures the internal contacts will open and safely interrupt the circuit during a fault, even if the toggle handle is mechanically held or locked in the ON position.

How does the local status indicator function?

A color-coded flag indicator displays red when the contacts are closed and green when the contacts are fully open, providing a reliable visual confirmation of circuit isolation prior to servicing equipment.

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Reviews

2.0
Rated 2.0 out of 5 stars
Based on 2 reviews
Total 5 star reviews: 0 Total 4 star reviews: 0 Total 3 star reviews: 0 Total 2 star reviews: 2 Total 1 star reviews: 0
Rating
Ratings
2 reviews
  • V
    Victor
    Verified Reviewer
    Reviewing
    Eaton / Cutler-Hammer FAZ-C50/3 - 50A 3 Pole Supplementary Protector
    I do not recommend this product
    Rated 2 out of 5 stars
    1/12/26
    NO DIMENSIONS!

    Once again not one single dimension listed. Once again I can't consider buying because you provided NO PHYSICAL DIMENSIONS

  • VG
    Victor G.
    Verified Reviewer
    Reviewing
    Eaton / Cutler-Hammer FAZ-C50/3 - 50A 3 Pole Supplementary Protector
    I do not recommend this product
    Rated 2 out of 5 stars
    1/12/26
    NO PHYSICAL DIMENSIONS

    Where are the physical dimensions? Can't buy it without them.