Eaton / Cutler-Hammer FAZ-B8/1-NA-SP Miniature Circuit Breaker
- 8A
- 1 Pole
- DIN Rail
Quantity
Eaton / Cutler-Hammer FAZ-B8/1-NA-SP - 8A 1 Pole Miniature Circuit Breaker
New
Quantity
Description
Providing precise overcurrent defense for sensitive control circuitry, this 8-amp single-pole breaker features a highly responsive B-curve thermal-magnetic trip. It integrates seamlessly into DIN rail systems and serves as an exact replacement for the FAZ-B8/1-NA. Rated for 10kA interrupting capacity at 277VAC, the current-limiting design includes a visual trip indicator and HACR rating to support demanding commercial and industrial environments.Specifications
| Brand | Eaton / Cutler-Hammer |
|---|---|
| Series | FAZ |
| Amperage | 8A |
| Poles | 1 |
| Mounting Style | DIN Rail |
| Voltage | 277VAC, 48VDC |
| Phase | 1 |
| AIC Rating | 10kA @ 277VAC, 10kA @ 48VDC |
| 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 |
| Trip Technology | Thermal Magnetic |
|---|---|
| Trip Function Code | LI |
| Trip Function | Long-Time, Instantaneous |
| Trip Curve | B |
| Trip Adjustability | Fixed |
| Available Options | Auxiliary Switch, Alarm Switch, Shunt Trip, Undervoltage Release, Padlock Attachment, Busbar System |
|---|---|
| Standards | CSA C22.2 No. 5, IEC 60947-2, RoHS, UL 489 |
| Approval | ABS, CCC, CE, CSA, DNV, GL, IEC, Lloyd's, UL, VDE |
| Temp Rating | -25C to 75C |
| Construction Features | Current Limiting, HACR Rated, SWD Rated, Reverse Feed, Trip-Free Mechanism, RoHS Compliant |
Product FAQs
6 answersWhat type of loads are appropriate for the B trip curve on the FAZ-B8/1-NA-SP?
The B curve trips at 3 to 5 times the 8-amp rated current. This highly sensitive trip threshold is designed for resistive loads, PLC wiring, or circuits with very low inrush currents where rapid protection is required.
Does the FAZ-B8/1-NA-SP meet UL 489 requirements for branch circuit protection?
Yes. The NA designation in the part number signifies that it is a UL 489 listed miniature circuit breaker, making it suitable for primary branch circuit protection rather than just supplementary protection.
What type of mounting and wiring does the FAZ-B8/1-NA-SP require?
It is designed for standard 35mm DIN rail systems commonly found in industrial control panels. The box lug terminals accommodate 18 to 6 AWG copper wire.
What is the difference between the FAZ-B8/1-NA and the FAZ-B8/1-NA-SP?
There is no physical difference in the breaker itself. The SP suffix simply denotes a Single Package for individual distribution, whereas the standard part number may be shipped in bulk OEM packaging.
Is the FAZ-B8/1-NA-SP suitable for both AC and DC control circuits?
Yes. While commonly used for 277VAC branch circuits, it is also fully rated for 48VDC applications, providing a 10kA interrupting rating for both alternating and direct current systems.
How does the current-limiting design of the FAZ-B8/1-NA-SP improve panel safety?
As a current-limiting breaker, it clears short circuits extremely fast. This rapid interruption significantly reduces the peak let-through energy, protecting sensitive downstream components and wiring from severe thermal and magnetic stress.
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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.