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Square D FHF16090 - Molded Case Circuit Breaker 90A 277V 1P

Square D
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Square D FHF16090 is a molded case circuit breaker designed for providing reliable overcurrent protection in industrial and commercial electrical systems. It features a 90A current rating and a 277V AC voltage rating, engineered for single-phase applications. The breaker utilizes a compact, bolt-on connection design with a thermal-magnetic trip mechanism providing both long-time and instantaneous (LI) protection functions. It complies with relevant industry standards and is rated for an interrupting capacity of 25kA at 277V AC. Typical applications include protection for feeders, branch circuits, and equipment within industrial control panels and distribution boards.

Key Features & Specifications
  • Type: Molded Case Circuit Breaker, FHF Series, Thermal Magnetic Protection
  • Voltage Rating: 277V AC
  • Current Rating: 90A
  • Poles: 1
  • Phase: 1
  • Connection: Bolt-On
  • AIC Rating: 25kA @ 277V AC
  • Protection Functions: LI (Long-Time and Instantaneous)
  • Trip Type: Thermal Magnetic
  • Weight: 2 lb
  • Additional Info: Lugs are not included; specific lug part numbers require wiring specifications.


Product Identification
  • Manufacturer Part Number: FHF16090