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Eaton / Cutler-Hammer FAZ-D3/3-NA Miniature Circuit Breaker

  • 3A
  • 3 Pole
  • DIN Rail
Eaton / Cutler-Hammer FAZ-D3/3-NA
Miniature Circuit Breaker
Brand Eaton / Cutler-Hammer
SKU FAZ-D3/3-NA
Select Item Condition
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  • 3A
  • 3 Pole
  • DIN Rail

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Eaton / Cutler-Hammer FAZ-D3/3-NA - 3A 3 Pole Miniature Circuit Breaker

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$258.32 In Stock

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Description

Designed for motor control environments, this 3A miniature breaker delivers robust branch protection. It is optimized for systems requiring high inrush tolerance. The device attaches securely to 35mm DIN rails inside industrial enclosures. It also acts as an exact substitute for the discontinued WMZT3D03 breaker. Featuring a 10kAIC rating at 480Y/277VAC, the D-curve trip unit allows 10-20 times the rated current during startup. It includes a trip-free mechanism.

Specifications

Key specifications
Brand Eaton / Cutler-Hammer
Part Number FAZ-D3/3-NA
Series FAZ-NA
Amperage 3A
Poles 3
Mounting Style DIN Rail
Voltage 480Y/277VAC, 96VDC
Phase 3
AIC Rating 10kA @ 480Y/277VAC, 10kA @ 96VDC
Fit and installation
Frame Type FAZ
Terminal Type Box Lugs
For Use With Industrial Control Panels, DIN Rail Enclosures
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 D
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, HACR, IEC, Lloyd's, RoHS, UL, VDE
Temp Rating -25C to 75C
Construction Features Current Limiting, HACR Rated, Reverse Feed, Trip-Free Mechanism, Visual Trip Indicator, RoHS Compliant

Product FAQs

10 answers
What does the D-curve trip characteristic mean for the FAZ-D3/3-NA?

The D-curve magnetic trip point is set between 10 and 20 times the rated current. This allows the breaker to handle high inrush currents without nuisance tripping, making it ideal for motors, transformers, and power supplies.

Is the Eaton FAZ-D3/3-NA rated for reverse feeding?

Yes, this miniature circuit breaker is reverse feed capable, meaning power can be supplied to either the line or load side terminals.

Is this breaker HACR rated?

Yes, the FAZ-D3/3-NA is HACR rated, making it suitable for heating, air conditioning, and refrigeration equipment applications.

Does this breaker provide current limiting protection?

Yes, the FAZ-NA series features a current limiting design that interrupts fault currents within one half cycle, reducing peak let-through energy to protect downstream circuits.

What standards does the FAZ-D3/3-NA comply with for North American applications?

This breaker is fully UL 489 listed and CSA C22.2 No. 5 certified for feeder and branch circuit protection.

Can I use wire ferrules with the box lug terminals on this breaker?

Eaton does not recommend the use of wire ferrules or crimping terminals with the FAZ-NA series. Bare copper wire should be used according to the specified 18 to 6 AWG range.

What accessories are compatible with the FAZ-D3/3-NA?

This breaker accepts field-mountable accessories including auxiliary switches, shunt trips, undervoltage releases, lockout attachments, and busbar systems.

What is the direct replacement for the discontinued WMZT3D03 breaker?

The Eaton FAZ-D3/3-NA serves as an exact, direct substitute for the obsolete WMZT3D03 miniature circuit breaker.

Can I terminate two wires in a single terminal on the FAZ-D3/3-NA?

Yes, the box lug terminals can accept two wires ranging from 18 AWG to 10 AWG, or a single wire from 18 AWG to 6 AWG.

How much space does the FAZ-D3/3-NA require on a DIN rail?

The breaker requires a module width of 17.5 mm per pole, taking up a total width of 52.5 mm on a standard 35 mm DIN rail.

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