Eaton / Cutler-Hammer FAZ-B20/3-NA Miniature Circuit Breaker
- 20A
- 3 Pole
- DIN Rail
Quantity
Eaton / Cutler-Hammer FAZ-B20/3-NA - 20A 3 Pole Miniature Circuit Breaker
New
Quantity
Description
Rated for 480Y/277VAC systems, this three-pole 20A miniature circuit breaker delivers reliable current-limiting performance. It securely fastens onto standard DIN rails, making it a versatile choice for industrial control panels and automation equipment. The B-curve thermal-magnetic trip profile ensures rapid response to overcurrents, specifically tailored for low-inrush components. This UL 489 listed device also includes a visual trip indicator and reverse feed capabilities.Specifications
| Brand | Eaton / Cutler-Hammer |
|---|---|
| Part Number | FAZ-B20/3-NA |
| Series | FAZ |
| Amperage | 20A |
| Poles | 3 |
| Mounting Style | DIN Rail |
| Voltage | 240VAC, 480Y/277VAC, 96VDC |
| Phase | 3 |
| AIC Rating | 14kA @ 240VAC, 14kA @ 480Y/277VAC, 10kA @ 96VDC |
| 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 |
| Trip Technology | Thermal Magnetic |
|---|---|
| Trip Function Code | LI |
| Trip Function | Long-Time, Instantaneous |
| Trip Curve | B |
| Trip Adjustability | Fixed |
| 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, DNV, Lloyd's, RoHS, SWD, UL, VDE |
| Temp Rating | -40C to 75C |
| Construction Features | Current Limiting, HACR Rated, Reverse Feed, Trip-Free Mechanism, Visual Trip Indicator |
Product FAQs
5 answersWhat does the B in the FAZ-B20/3-NA part number signify?
The B indicates a B curve trip characteristic. This means the breaker is designed to trip instantaneously at 3 to 5 times the rated current, making it ideal for resistive or slightly inductive loads with low inrush currents, such as control circuits and lighting.
Is the Eaton FAZ-B20/3-NA rated as a supplementary protector or for branch circuit protection?
The -NA suffix designates this breaker as a UL 489 listed device, meaning it is approved for branch circuit protection in North America, unlike UL 1077 supplementary protectors.
What types of applications are best suited for the FAZ-B20/3-NA?
Because of its B curve trip profile and UL 489 listing, it is typically used in industrial control panels for protecting sensitive wiring, PLCs, and resistive loads where high inrush currents are not expected.
Does the FAZ-B20/3-NA offer current-limiting protection?
Yes, the FAZ series features a current-limiting design that provides fast short-circuit interruption. This reduces the let-through energy that can damage downstream circuit components during a fault.
Is the FAZ-B20/3-NA suitable for international applications?
Yes, Eaton FAZ series miniature circuit breakers are dual rated for both UL and IEC standards, allowing them to be used in domestic and international industrial control panels.
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Reviews
Review summary
Customers rate this product 2.0 out of 5 based on 2 reviews.
- VVictorVerified ReviewerReviewingEaton / Cutler-Hammer FAZ-C50/3 - 50A 3 Pole Supplementary ProtectorI do not recommend this productRated 2 out of 5 stars1/12/26NO DIMENSIONS!
Once again not one single dimension listed. Once again I can't consider buying because you provided NO PHYSICAL DIMENSIONS
- VGVictor G.Verified ReviewerReviewingEaton / Cutler-Hammer FAZ-C50/3 - 50A 3 Pole Supplementary ProtectorI do not recommend this productRated 2 out of 5 stars1/12/26NO PHYSICAL DIMENSIONS
Where are the physical dimensions? Can't buy it without them.