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Square D FA14050B - Molded Case Circuit Breaker 50A 1P 277V

Square D
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Square D FA14050B is a molded case circuit breaker designed for providing reliable overcurrent and short-circuit protection in industrial and commercial electrical systems. It features a 50A current rating and a 277V AC voltage rating, housed within a compact F-frame measuring 162.6 mm H x 38.1 mm W x 104.9 mm D and weighing 6 lb. This single-pole, plug-in unit utilizes a thermal-magnetic trip mechanism for both long-time and instantaneous protection, achieving an interrupting capacity of 18 kA at 277V. Constructed for I-Line panelboards, it is engineered to relevant industry standards and is suitable for protecting branch circuits in lighting, HVAC, and other single-phase applications.

Key Features & Specifications
  • Type: Molded Case Circuit Breaker, Thermal-Magnetic Protection, I-Line Plug-In
  • Voltage Rating: 277V AC
  • Current Rating: 50A
  • Dimensions: 162.6 mm H x 38.1 mm W x 104.9 mm D (6.4 in x 1.5 in x 4.13 in)
  • Standards: Engineered to relevant industry standards
  • Applications: Industrial and commercial branch circuit protection for lighting, HVAC, and single-phase loads
  • Switch Type: Circuit Breaker
  • Configuration: Plug-In
  • Phase: 1
  • Amperage: 50A
  • AIC Rating: 18 kA @ 277V
  • Connection: I-Line Style Plug-In
  • Poles: 1
  • Protection: Thermal Magnetic
  • Functions: Long Time and Instantaneous
  • Frame Size: F Frame
  • Wire Size: Accepts AWG 14 to 1/0 Copper (1 cable) or AWG 12 to 1/0 Aluminum (1 cable)
  • Weight: 6 lb
  • Country of Origin: Mexico


Product Identification
  • Manufacturer: Schneider Electric
  • Family: I-Line
  • Type: FA
  • UPC: 785901648949
  • GTIN: 00785901648949