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Eaton / Cutler-Hammer FAZ-B15/3-NA Miniature Circuit Breaker

  • 15A
  • 3 Pole
  • DIN Rail
Eaton / Cutler-Hammer FAZ-B15/3-NA
Miniature Circuit Breaker
Brand Eaton / Cutler-Hammer
SKU FAZ-B15/3-NA
Select Item Condition
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  • 15A
  • 3 Pole
  • DIN Rail

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FAZ-B15/3-NA

Eaton / Cutler-Hammer FAZ-B15/3-NA - 15A 3 Pole Miniature Circuit Breaker

New

$263.90 In Stock

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Description

Constructed for demanding automation environments, this three-pole Eaton miniature circuit breaker delivers reliable UL 489 branch protection. The integrated B-curve thermal-magnetic trip unit is tailored for resistive loads and applications with minimal inrush current. The compact footprint allows the device to mount onto standard 35mm DIN rail systems, optimizing layout efficiency in industrial control panels. It accepts 18-6 AWG wiring via secure box lug terminals.

Specifications

Key specifications
Brand Eaton / Cutler-Hammer
Part Number FAZ-B15/3-NA
Series FAZ
Amperage 15A
Poles 3
Mounting Style DIN Rail
Voltage 240VAC, 480Y/277VAC, 96VDC
Phase 3
AIC Rating 14kA @ 240VAC, 14kA @ 480Y/277VAC, 10kA @ 96VDC
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 B
Trip Adjustability Fixed Thermal, Fixed Magnetic
Standards and features
Available Options Auxiliary Switch, Shunt Trip, Undervoltage Release, Padlock Attachment, Busbar System
Standards CSA C22.2 No. 5, IEC 60947-2, UL 489
Approval ABS, CE, CSA, cULus, DNV, IEC, Lloyd's, UL, VDE
Temp Rating -25C to 75C

Product FAQs

8 answers
What is the trip curve characteristic of the FAZ-B15/3-NA?

This breaker features a B-curve thermal magnetic trip profile. The magnetic trip point activates between 3 and 5 times the rated current, making it ideal for resistive loads or circuits with very low inrush currents.

Is the Eaton FAZ-B15/3-NA rated for branch circuit protection?

Yes, it is a UL 489 listed miniature circuit breaker. This means it is fully rated for primary branch circuit protection in North American applications, unlike UL 1077 supplementary protectors.

Can the FAZ-B15/3-NA be reverse fed?

Yes, this Eaton FAZ-NA series circuit breaker supports reverse feeding. Power can be supplied to either the line or load side terminals without affecting the protection characteristics.

What size DIN rail is required for mounting this breaker?

The FAZ-B15/3-NA mounts directly onto standard 35mm DIN rail systems commonly used in industrial control panels and automation environments.

How many conductors can be terminated in the box lugs?

The box lug terminals are designed to accept either a single conductor from 18 to 6 AWG, or two conductors from 18 to 10 AWG, allowing for flexible wiring configurations in control panels.

Is this breaker suitable for switching lighting loads?

Yes, Eaton FAZ-NA breakers rated 20A and below, including this 15A model, carry an SWD (Switching Duty) rating. This makes them suitable for switching fluorescent lighting loads on a regular basis.

Is the FAZ-B15/3-NA a current limiting breaker?

Yes, the FAZ-NA series utilizes a current limiting design. This provides fast short circuit interruption, reducing the let-through energy that can damage downstream circuit components.

Does this breaker have a trip-free mechanism?

Yes, it features a trip-free design. The breaker will trip internally during an overcurrent or short circuit event even if the handle is physically held in the ON position.

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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.