Eaton / Cutler-Hammer HFB2150 Molded Case Circuit Breaker
- 150A
- 2 Pole
- Bolt-On
Quantity
Eaton / Cutler-Hammer HFB2150 - 150A 2 Pole Molded Case Circuit Breaker
Re-Certified
Quantity
Description
Part of the Eaton Mark 75 family, the HFB2150 is a 2-pole molded case circuit breaker built for commercial and industrial distribution. It provides reliable thermal-magnetic protection for 150A circuits up to 600VAC. This F-Frame breaker mounts into Eaton Pow-R-Line C panelboards, as well as legacy Westinghouse F-Frame panelboards and switchboards. It serves as an exact replacement for older HFD2150 and FD2150 units.Specifications
| Brand | Eaton / Cutler-Hammer |
|---|---|
| Part Number | HFB2150-R |
| Series | HF |
| Amperage | 150A |
| Poles | 2 |
| Mounting Style | Bolt-On |
| Voltage | 240VAC, 480VAC, 600VAC, 250VDC |
| Phase | 1 |
| AIC Rating | 65kA @ 240VAC, 25kA @ 480VAC, 18kA @ 600VAC, 10kA @ 250VDC |
| Frame Type | HFB |
|---|---|
| Terminal Type | Lugs |
| For Use With | Eaton Pow-R-Line C Panelboards, Westinghouse F-Frame Panelboards, Switchboards, Motor Control Centers |
| Wire Gauge | 4 AWG - 4/0 AWG (Cu/Al) |
| Max Wire | 4/0 AWG |
| Min Wire | 4 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, Padlock Attachment |
|---|---|
| Accessories | Load Side Lugs Included |
| Standards | CSA C22.2 No. 5, NEMA AB-1, UL 489 |
| Approval | CSA, UL |
| Temp Rating | 40C |
| Construction Features | HACR Rated, High Interrupting Capacity, Reverse Feed, Mark 75 |
Product FAQs
6 answersWhat panelboards accept the HFB2150 circuit breaker?
This F-Frame breaker is designed to bolt into Eaton Pow-R-Line C panelboards. It is also backward compatible with legacy Westinghouse F-Frame panelboards, switchboards, and motor control centers.
Is the Eaton HFB2150 the same as the Westinghouse HFB2150?
Yes. Eaton manufactures this breaker to the exact physical and electrical specifications of the original Westinghouse HFB2150, making it a direct drop-in replacement.
What wire size is required for the HFB2150 lugs?
The included load-side lugs accommodate wire gauges from 4 AWG to 4/0 AWG. The terminals are dual-rated for either copper or aluminum conductors.
Can the HFB2150 be used in direct current (DC) systems?
Yes, this thermal-magnetic breaker is rated for use in 250VDC systems, providing up to 10kA of interrupting capacity for DC applications.
How does the trip mechanism function on the HFB2150?
It utilizes a fixed thermal-magnetic trip unit. The thermal component provides long-time delay protection against overloads, while the magnetic component provides instantaneous protection against short circuits.
What does the Mark 75 family name indicate on this breaker?
Mark 75 is a legacy Westinghouse designation for F-Frame molded case circuit breakers built with high interrupting capacities, a standard that Eaton continues to support.
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