Eaton / Cutler-Hammer FAZ-B25/3-NA Miniature Circuit Breaker
- 25A
- 3 Pole
- DIN Rail
Quantity
Eaton / Cutler-Hammer FAZ-B25/3-NA - 25A 3 Pole Miniature Circuit Breaker
New
Quantity
Description
Built for heavy-duty commercial and industrial use, this Eaton FAZ-NA series miniature circuit breaker delivers reliable three-phase protection. It is optimized for circuits with low inrush currents. Designed for quick installation, the three-pole unit snaps onto standard DIN rails within control panels and automation systems. It features robust box lugs and supports reverse feed configurations. With a 14 kAIC rating at 480Y/277VAC, the breaker employs a B-curve thermal-magnetic mechanism.Specifications
| Brand | Eaton / Cutler-Hammer |
|---|---|
| Part Number | FAZ-B25/3-NA |
| Series | FAZ-NA |
| Amperage | 25A |
| Poles | 3 |
| Mounting Style | DIN Rail |
| Voltage | 480Y/277VAC, 96VDC |
| Phase | 3 |
| AIC Rating | 14kA @ 480Y/277VAC, 10kA @ 96VDC |
| Terminal Type | Box Lugs |
|---|---|
| For Use With | DIN Rail Panels, 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, Lockout Attachment, Busbar System |
|---|---|
| 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 |
Product FAQs
8 answersIs the Eaton FAZ-B25/3-NA suitable for branch circuit protection?
Yes, the FAZ-NA series is UL 489 listed, making it approved for branch circuit protection in DIN rail panels and industrial control panels.
What is the magnetic trip threshold for the B-curve on this breaker?
The B-curve thermal-magnetic trip mechanism is designed to trip instantaneously at 3 to 5 times the 25A rated current.
What types of loads are best suited for a B-curve miniature circuit breaker?
B-curve breakers are optimized for applications with low inrush currents, such as resistive loads, convenience receptacles, and control instrumentation.
Can the FAZ-B25/3-NA be reverse fed?
Yes, power to this circuit breaker can be fed from either the line or the load side.
What is the required wire size for the box lug terminals on this breaker?
The box lugs accept 18 to 6 AWG for a single wire connection, or 18 to 10 AWG when connecting two wires.
Does this breaker have a trip-free mechanism?
Yes, it features a trip-free design, meaning the breaker will open under fault conditions even if the handle is physically held in the ON position.
How does the current-limiting design of the FAZ-NA series protect circuits?
The current-limiting design provides fast short-circuit interruption, which reduces the peak let-through energy that can damage downstream circuit components.
Does the FAZ-B25/3-NA include a visual status indicator?
Yes, it features a color-coded indicator that provides immediate visual confirmation of the device status, showing green for OFF and red for ON.
SuperClub
Join free. Get 500 SuperPoints.
Earn points on eligible purchases and redeem them at checkout.
100 SuperPoints = $1 off.
Warranties
Add an extra year of protection
60-Day Warranty
Your purchase includes 60 days of SuperBreakers warranty coverage.
Add a 1-year warranty extension in your cart.
Get a Quote
Don’t see what you’re looking for?
We source obsolete and hard-to-find parts every day.
Shipping
Free Shipping Policy
Parcel shipments with item value over $99 qualify for free economy shipping within the continental US. Please call to confirm special handling instructions. We do not charge a handling fee or require a minimum amount on any order. SuperBreakers does not ship on customer accounts.
Same Day Shipping
We strive to ship out your items the same day the order is placed. In rare circumstances SuperBreakers may reserve up to 5 business days to consolidate orders for complete shipment.
Expedited Shipments
Orders being shipped via Next Day Air, 2 Day Shipping or 3 Day Shipping must be received by 3 PM EST to guarantee same-day shipments. Expedited orders only ship on normal business days. Shipments will NOT be sent out on Saturdays and Sundays.
International Shipping
All International orders require a $1,000 minimum order threshold. Due to the special nature of these shipments, we require that these be placed with a SuperBreakers representative. Additional shipping and instructions will apply. All International Orders are Non-Cancel and Non-Refundable.