Eaton / Cutler-Hammer FAZ-B8/2-NA Miniature Circuit Breaker
- 8A
- 2 Pole
- DIN Rail
Quantity
Eaton / Cutler-Hammer FAZ-B8/2-NA - 8A 2 Pole Miniature Circuit Breaker
New
Quantity
Description
Part of the FAZ series, the Eaton FAZ-B8/2-NA is a 2-pole, 8A miniature circuit breaker designed for commercial and industrial applications. This current-limiting breaker mounts onto standard 35mm DIN rail systems, making it ideal for industrial control panels. It features box lug terminals that accept 18-6 AWG wiring. Rated at 10 kAIC for 480Y/277VAC systems, this UL 489 listed breaker includes a visual trip indicator, a trip-free mechanism, and reverse feed capabilities.Specifications
| Brand | Eaton / Cutler-Hammer |
|---|---|
| Part Number | FAZ-B8/2-NA |
| Series | FAZ-NA |
| Amperage | 8A |
| Poles | 2 |
| Mounting Style | DIN Rail |
| Voltage | 480Y/277VAC, 96VDC |
| Phase | 1 |
| AIC Rating | 10kA @ 480Y/277VAC, 10kA @ 96VDC |
| Terminal Type | Box Lugs |
|---|---|
| For Use With | DIN Rail Systems, Industrial Control Panels |
| Wire Gauge | 18-6 AWG (1 wire), 18-10 AWG (2 wires) |
| 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 Thermal, Fixed Magnetic |
| Available Options | Auxiliary Switch, Shunt Trip, Undervoltage Release, Alarm Switch, Lockout Attachment, Busbar System |
|---|---|
| Standards | CSA C22.2 No. 5, IEC 60947-2, UL 489 |
| Approval | ABS, CE, CSA, DNV, IEC, Lloyd's, RoHS, UL, VDE |
| Temp Rating | -40C to 75C |
| Construction Features | Current Limiting, HACR Rated, Reverse Feed, Trip-Free Mechanism, Visual Trip Indicator |
Product FAQs
8 answersWhat is the trip curve characteristic of the FAZ-B8/2-NA?
This breaker features a B-curve trip characteristic, meaning it trips instantaneously at 3 to 5 times the rated current. It is designed for resistive or slightly inductive loads where low levels of inrush current are expected.
Is the Eaton FAZ-B8/2-NA rated for branch circuit protection?
Yes, the FAZ-NA series is UL 489 listed, making it suitable for primary branch circuit protection in North America, unlike UL 1077 supplementary protectors.
What type of mounting does the FAZ-B8/2-NA require?
It mounts directly onto a standard 35mm DIN rail, making it ideal for high-density industrial control panels and automation equipment.
What wire sizes are compatible with the terminals on this 8A breaker?
The box lug terminals accept 18 to 6 AWG for a single wire installation, or 18 to 10 AWG when connecting two wires.
Does the FAZ-B8/2-NA feature a current-limiting design?
Yes, it is a current-limiting breaker. It interrupts fault currents within one half-cycle, reducing the peak let-through energy that can damage downstream circuit components.
Can this 2-pole breaker be used in DC applications?
Yes, the FAZ-B8/2-NA is dual-rated for AC and DC systems. It is rated for up to 96 VDC with a 10 kA interrupting capacity.
Does this breaker have a trip-free mechanism?
Yes, it features a trip-free design. The breaker will still trip during an overcurrent or short-circuit event even if the handle is physically held in the ON position.
Can power be fed from either direction on the FAZ-B8/2-NA?
Yes, this breaker supports reverse feed. Power can be supplied to either the line or load side terminals without affecting its protective functions.
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