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Eaton / Cutler-Hammer HFB3025 Molded Case Circuit Breaker
- 25A
- 3 Pole
- Bolt-On
Eaton / Cutler-Hammer
HFB3025
Molded Case Circuit Breaker
Brand
Eaton / Cutler-Hammer
SKU
HFB3025
Quantity
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Eaton / Cutler-Hammer HFB3025 - 25A 3 Pole Molded Case Circuit Breaker
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Description
Built for commercial and industrial environments, the Eaton HFB3025 delivers 25 amps of reliable power distribution across three poles. This Mark 75 series MCCB features standard long-time and instantaneous trip functions. Designed with a bolt-on mounting style, it integrates into F-Frame switchboards and Eaton Pow-R-Line C panels. Facilities can also substitute this unit with the HFD3025. The breaker boasts a robust 65kA interrupting rating at 240VAC and includes reverse feed capabilities.Specifications
| Brand | Eaton / Cutler-Hammer |
|---|---|
| Part Number | HFB3025-R |
| Series | HFB |
| Amperage | 25A |
| Poles | 3 |
| Mounting Style | Bolt-On |
| Voltage | 240VAC, 480VAC, 600VAC, 250VDC |
| Phase | 3 |
| AIC Rating | 65kA @ 240VAC, 25kA @ 480VAC, 18kA @ 600VAC, 20kA @ 250VDC |
| Terminal Type | Lugs |
|---|---|
| For Use With | Westinghouse FDP Panelboards, Eaton Pow-R-Line C Panelboards, F-Frame Switchboards |
| Wire Gauge | 14-1/0 AWG (Cu/Al) |
| Max Wire | 1/0 AWG |
| Min Wire | 14 AWG |
| Trip Technology | Thermal Magnetic |
|---|---|
| Trip Function Code | LI |
| Trip Function | Long-Time, Instantaneous |
| Trip Adjustability | Fixed Thermal, Fixed Magnetic |
| Available Options | Shunt Trip, Auxiliary Switch, Undervoltage Release, Alarm Switch |
|---|---|
| Accessories | Load Side Lugs |
| Standards | NEMA AB-1, UL 489 |
| Approval | CSA, UL |
| Temp Rating | 40C |
| Construction Features | High Interrupting Capacity, HACR Rated, Reverse Feed, Non-Interchangeable Trip, HID Rated |
Product FAQs
8 answersWhat panelboards are compatible with the HFB3025 circuit breaker?
This breaker is designed for use in Westinghouse FDP panelboards, Eaton Pow-R-Line C panelboards, and F-Frame switchboards.
Can I use the HFB3025 to replace an older Westinghouse HFB breaker?
Yes. Eaton acquired the Westinghouse distribution equipment business, so the Eaton Cutler-Hammer HFB3025 is a direct replacement for legacy Westinghouse breakers with the exact same catalog number.
Is there a direct substitute available for the HFB3025?
Yes, the HFD3025 can be used as a drop-in substitute. It shares the same physical F-Frame dimensions and mounting but offers a higher interrupting capacity rating.
What are the wire size and material requirements for the HFB3025 lugs?
The standard load side lugs accept 14 to 1/0 AWG copper or aluminum wire.
What are the torque specifications for the standard lugs on this F-Frame breaker?
Torque requirements depend on the wire size used. Tighten 14 to 10 AWG wire to 35 lb-in, 8 AWG to 40 lb-in, 6 to 4 AWG to 45 lb-in, and 3 to 1/0 AWG to 50 lb-in.
What does the Mark 75 designation indicate on the HFB3025?
The Mark 75 family designates a line of high interrupting capacity breakers originally introduced by Westinghouse. On the HFB3025, it delivers a 65kA interrupting rating at 240VAC.
Is the HFB3025 suitable for reverse feed applications?
Yes, Eaton F-Frame circuit breakers, including the HFB series, are suitable for reverse feed use.
Are the trip settings on the HFB3025 adjustable?
No, this breaker features a thermal-magnetic trip unit with fixed long-time and fixed instantaneous trip functions.
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