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Eaton / Cutler-Hammer FAZ-B5/2-NA Miniature Circuit Breaker

  • 5A
  • 2 Pole
  • DIN Rail
Eaton / Cutler-Hammer FAZ-B5/2-NA
Miniature Circuit Breaker
Brand Eaton / Cutler-Hammer
SKU FAZ-B5/2-NA
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  • 5A
  • 2 Pole
  • DIN Rail

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Eaton / Cutler-Hammer FAZ-B5/2-NA - 5A 2 Pole Miniature Circuit Breaker

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$185.60 In Stock

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Description

Designed for commercial and industrial applications, this UL 489 rated component provides reliable thermal-magnetic protection. The B-curve trip characteristic responds quickly to low inrush currents, making it ideal for sensitive control circuitry. Installation onto standard DIN rail systems streamlines assembly within industrial control panels. A built-in visual status indicator allows facility managers to identify tripped circuits. Current-limiting capabilities ensure enhanced safety.

Specifications

Key specifications
Brand Eaton / Cutler-Hammer
Part Number FAZ-B5/2-NA
Series FAZ
Amperage 5A
Poles 2
Mounting Style DIN Rail
Voltage 480Y/277VAC, 96VDC
Phase 1
AIC Rating 10kA @ 480Y/277VAC, 10kA @ 96VDC
Fit and installation
Terminal Type Box Lugs
For Use With DIN Rail Systems, Industrial Control Panels
Wire Gauge 18-6 AWG
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
Standards and features
Available Options Auxiliary Switch, Shunt Trip, Undervoltage Release, Lockout Attachment, Busbar System
Standards CSA C22.2 No. 5, IEC 60947-2, UL 489
Approval ABS, CE, CSA, DNV, Lloyd's, RoHS, SWD, UL, VDE
Temp Rating -40C to 75C
Construction Features Current Limiting, Trip-Free Mechanism, Visual Trip Indicator, Common Trip, HACR Rated, Reverse Feed, RoHS Compliant

Product FAQs

8 answers
What does the B-curve trip characteristic mean on the FAZ-B5/2-NA?

The B-curve trip profile is designed to trip instantaneously at 3 to 5 times the rated current. This makes it ideal for protecting sensitive control circuitry and applications where low levels of inrush current are expected.

Is the Eaton FAZ-B5/2-NA rated for branch circuit protection?

Yes, this miniature circuit breaker is UL 489 listed, meaning it is fully rated for branch circuit protection in industrial control panels, unlike UL 1077 supplementary protectors.

How is the FAZ-B5/2-NA circuit breaker mounted?

It is designed to snap directly onto a standard 35mm DIN rail, which streamlines assembly and organization within industrial control panels.

Can I add auxiliary accessories to the FAZ-B5/2-NA?

Yes, this breaker supports field-installable accessories, including auxiliary switches, shunt trips, and undervoltage releases, which can be mounted to the side of the breaker.

Does the FAZ-B5/2-NA offer current-limiting capabilities?

Yes, its current-limiting design provides fast short-circuit interruption. This reduces the let-through energy during a fault, helping to prevent damage to downstream wiring and sensitive equipment.

Can the breaker be held in the ON position during a fault?

No, the FAZ-B5/2-NA features a trip-free mechanism. The breaker will trip internally during an overcurrent or short-circuit event even if the handle is physically held in the ON position.

What size wire is accepted by the box lugs on this 5A breaker?

The terminal box lugs are designed to accept wire gauges ranging from 18 AWG up to 6 AWG, and feature captive screws that cannot be lost during installation.

Can the FAZ-B5/2-NA be used in DC applications?

Yes, in addition to its 277/480 VAC rating, this breaker is rated for use in DC circuits up to 96 VDC with a 10 kA interrupting capacity, making it versatile for both AC and DC control panels.

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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.