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Square D FHL16040 - Molded Case Circuit Breaker 40A 277V AC

Square D
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Square D FHL16040 is a molded case circuit breaker designed for providing reliable overcurrent and short-circuit protection in industrial and commercial electrical systems. It features a 40A current rating and a 277V AC voltage rating, housed within a compact F-frame design measuring 162.6 mm H x 38.1 mm W x 104.9 mm D and weighing 2 lb. The breaker is engineered to meet industry standards, utilizing a thermal-magnetic trip unit that provides both long-time and instantaneous trip functions for coordinated protection. Its 25kA interrupting rating at 277V AC makes it suitable for safeguarding feeders and branch circuits in single-phase applications, with a feed-thru connection for straightforward installation.

Key Features & Specifications
  • Type: Molded Case Circuit Breaker, Thermal-Magnetic Protection
  • Voltage Rating: 277V AC
  • Current Rating: 40A
  • Dimensions: 6.4 in H (162.6 mm) x 1.5 in W (38.1 mm) x 4.13 in D (104.90 mm)
  • Standards: Designed to meet applicable industry standards
  • Applications: Industrial and commercial feeder/branch circuit protection
  • Switch Type: Circuit Breaker
  • Configuration: Fixed
  • Phase: 1
  • Amperage: 40A
  • AIC Rating: 25kA @ 277V AC
  • Connection: Feed-Thru
  • Poles: 1
  • Protection: Thermal Magnetic
  • Functions: Long Time and Instantaneous Trip
  • Frame Size: F Frame
  • Trip Type: Thermal-Magnetic
  • Weight: 2 lb


Product Identification
  • GTIN: 00785901309796