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Eaton / Cutler-Hammer FAZ-B8/3-NA Miniature Circuit Breaker

  • 8A
  • 3 Pole
  • DIN Rail
Eaton / Cutler-Hammer FAZ-B8/3-NA
Miniature Circuit Breaker
Brand Eaton / Cutler-Hammer
SKU FAZ-B8/3-NA
Select Item Condition
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  • 8A
  • 3 Pole
  • DIN Rail

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Eaton / Cutler-Hammer FAZ-B8/3-NA - 8A 3 Pole Miniature Circuit Breaker

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$235.51 In Stock

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Description

Built for commercial and industrial applications, the Eaton FAZ-B8/3-NA is a 3-pole, 8A miniature circuit breaker. This current-limiting breaker fastens onto standard 35mm DIN rail systems, making it an excellent choice for industrial control panels. It is equipped with box lug terminals that accommodate 18-6 AWG wire. Rated at 10 kAIC for 480Y/277VAC systems, this UL 489 listed breaker features a visual trip indicator, a trip-free mechanism, and reverse feed capabilities.

Specifications

Key specifications
Brand Eaton / Cutler-Hammer
Part Number FAZ-B8/3-NA
Series FAZ-NA
Amperage 8A
Poles 3
Mounting Style DIN Rail
Voltage 480Y/277VAC, 96VDC
Phase 3
AIC Rating 10kA @ 480Y/277VAC, 10kA @ 96VDC
Fit and installation
Terminal Type Box Lugs
For Use With DIN Rail Panels, 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, IEC, Lloyd's, UL, VDE
Temp Rating -40C to 75C
Construction Features Current Limiting, HACR Rated, Reverse Feed, Trip-Free Mechanism, Visual Trip Indicator

Product FAQs

9 answers
Is the Eaton FAZ-B8/3-NA rated for branch circuit protection?

Yes, the FAZ-B8/3-NA is a UL 489 listed miniature circuit breaker, making it suitable for branch circuit protection. It can also be used in applications that only require a UL 1077 supplementary protector.

What applications are best suited for the B-curve trip characteristic on this breaker?

The B-curve magnetic trip point is 3 to 5 times the rated current. It is designed for applications where low levels of inrush current are expected, such as resistive loads or protecting wiring from damage at low fault conditions.

Can the FAZ-B8/3-NA be reverse fed?

Yes, this circuit breaker is suitable for reverse feed applications. Power can be supplied to either the line or load side terminals.

Is the FAZ-B8/3-NA a current-limiting circuit breaker?

Yes, it features a current-limiting design that interrupts fault currents within one-half cycle. This reduces the peak let-through energy that could otherwise damage downstream circuit components.

Will this breaker still trip if the handle is held in the ON position?

Yes, it features a trip-free mechanism. The internal thermal-magnetic release will still disconnect the power supply during an overload or short circuit even if the handle is physically held in the ON position.

Does this Eaton miniature circuit breaker have a contact position indicator?

Yes, it includes a color-coded visual indicator on the front face. Red indicates the contacts are closed and power is ON, while green indicates the contacts are open and power is OFF.

How does the FAZ-B8/3-NA mount inside a control panel?

It mounts directly onto a standard 35mm DIN rail using a spring clip mechanism. The breaker requires a module width of 17.7 mm per pole.

Is this 8A circuit breaker rated for switching duty?

Yes, the FAZ-B8/3-NA carries an SWD (switching duty) rating, meaning it is suitable for switching fluorescent lighting loads on a regular basis.

What type of wire terminals are included on the FAZ-B8/3-NA?

It features standard box lug screw terminals with captive screws that prevent loss during installation. The lugs accept wire sizes from 18 AWG to 6 AWG.

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