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Westinghouse HFB1080 - Molded Case 80A 277V 1-Pole

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Westinghouse HFB1080 is a single-pole molded case circuit breaker from the MARK 75 family, designed for thermal magnetic overload and short-circuit protection in low-voltage electrical systems. It is rated for 80A at 277V AC with a high interrupting capacity of 65kA at 277V, providing LI (Long-Time and Instantaneous) trip functions for precise fault response. The unit features a bolt-on connection, weighs 1 lb, and is built for single-phase applications. This breaker complies with industry standards for molded case circuit breakers and is suited for commercial and industrial installations requiring reliable branch circuit protection.

Key Features & Specifications
  • Manufacturer: Westinghouse
  • Item Subcategory: Molded Case
  • Family: MARK 75
  • Type: HFB
  • Weight: 1 lb
  • Functions: LI - Long-Time and Instantaneous
  • Voltage Rating: 277V
  • Poles: 1
  • Connection: Bolt-On
  • Protection: Thermal Magnetic
  • AIC rating: 65kA@277V
  • Phase: 1
  • Current Rating: 80A
  • Part Number: HFB1080
  • Series/Frame: HFB
  • Mounting Type: Bolt-on
  • Trip Unit: Thermal Magnetic
  • Interrupt Rating: 10,000A