The Westinghouse HFB3020 is a 20-amp, 3-pole, 600V F-Frame Mark 75 molded case circuit breaker. Originally manufactured by Westinghouse Electric, the HFB series is now supported by Eaton (which acquired Westinghouse's circuit breaker division). The HFB3020 features a 65kAIC interrupting rating at 480V and is commonly found in older industrial installations. It is interchangeable with Eaton/Cutler-Hammer Series C F-Frame breakers in compatible enclosures.
| Specification | Value |
|---|---|
| Amperage | 20A |
| Poles | 3 |
| Voltage | 240/480/600VAC |
| Interrupt Rating | 100kA @ 240V · 65kA @ 480V · 25kA @ 600V |
| Frame Size | F-Frame (250A Frame) |
| Mounting Type | Bolt-On |
| Trip Type | Thermal Magnetic |
| Trip Function | LI — Long-Time, Instantaneous |
| Wire Size | #14–#8 AWG (Al/Cu) |
| Phase | 3-Phase |
| Standards | UL 489, CSA C22.2 No.5 |
| Temperature Rating | -25°C to 70°C |
Westinghouse HFB F-Frame Mark 75 20A 3-pole circuit breaker. In stock at AllBreakerSales.com. Call (877) 611-0034 for same-day pricing. Genuine OEM parts, ships from US warehouse.
Brand: Westinghouse | Series: HFB F-Frame Mark 75 | Catalog Number: HFB3020
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