Eaton / Cutler-HammerFAZ-D10/3-NA
Eaton / Cutler-Hammer FAZ-B5/3-NA Miniature Circuit Breaker
- 5A
- 3 Pole
- DIN Rail
Eaton / Cutler-Hammer
FAZ-B5/3-NA
Miniature Circuit Breaker
Brand
Eaton / Cutler-Hammer
SKU
FAZ-B5/3-NA
Quantity
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Eaton / Cutler-Hammer FAZ-B5/3-NA - 5A 3 Pole Miniature Circuit Breaker
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Description
Built to safeguard sensitive three-phase equipment, this current-limiting device utilizes a B-curve trip profile to handle low inrush loads. It delivers robust thermal-magnetic defense for industrial control environments. The modular housing secures onto standard DIN rail systems, facilitating organized panel layouts. Rated for HACR applications, it includes a visual trip indicator to simplify maintenance troubleshooting.Specifications
| Brand | Eaton / Cutler-Hammer |
|---|---|
| Part Number | FAZ-B5/3-NA |
| Series | FAZ-NA |
| Amperage | 5A |
| Poles | 3 |
| Mounting Style | DIN Rail |
| Voltage | 480Y/277VAC, 96VDC |
| Phase | 3 |
| 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 |
| Available Options | Auxiliary Switch, Shunt Trip, Undervoltage Release, Busbar System, Lockout Attachment, Padlock Attachment |
|---|---|
| Standards | CSA C22.2 No. 5, IEC 60947-2, RoHS, UL 489 |
| Approval | ABS, CE, CSA, cULus, DNV, 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
8 answersWhat does the B-curve trip characteristic mean for the FAZ-B5/3-NA?
The B-curve magnetic trip point is 3 to 5 times the rated current. It is designed for applications with low inrush currents, such as resistive loads, heaters, and long wire runs, preventing nuisance tripping while providing fast short-circuit protection.
Is the Eaton FAZ-B5/3-NA rated for branch circuit protection?
Yes, this breaker is UL 489 listed for branch circuit protection. It can also be used in applications that only require UL 1077 supplementary protection, but UL 1077 devices cannot be used in place of this UL 489 breaker.
Is the FAZ-B5/3-NA a current-limiting circuit breaker?
Yes, it features a current-limiting design that interrupts fault currents within one-half cycle. This reduces peak let-through energy, offering superior protection for downstream components and the circuit itself.
Can the FAZ-B5/3-NA be forced to stay on during a fault?
No, it features a trip-free design. The breaker will trip and interrupt the circuit during an overload or short circuit even if the handle is physically held in the ON position.
Can I add auxiliary contacts or a shunt trip to the FAZ-B5/3-NA?
Yes, this breaker supports field-installable accessories, including auxiliary switches and shunt trips, which can be mounted on the side of the breaker.
Is the FAZ-B5/3-NA rated for switching fluorescent lighting loads?
Yes, because its amperage rating is 20A or less, this 5A breaker is SWD (Switching Duty) rated and suitable for switching fluorescent lighting loads.
Does the FAZ-B5/3-NA have a contact position indicator?
Yes, it includes a visual red and green contact position indicator on the front of the breaker to easily verify if the contacts are open or closed.
What type of terminal screws are used on the FAZ-B5/3-NA?
The breaker features captive terminal screws that cannot be lost during installation, ensuring a secure connection for the box lugs.
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