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Square D FYB14020A - Molded Case Circuit Breaker 20A 277V AC

Square D
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Square D FYB14020A is a molded case circuit breaker designed for providing reliable overcurrent protection in commercial and industrial electrical systems. It features a 20A 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. This single-pole, plug-in unit utilizes a thermal-magnetic trip mechanism for combined long-time and instantaneous (LI) protection, is UL Listed, and offers an interrupting capacity of 18kA at 277V AC. Its I-Line style connection facilitates straightforward panelboard installation, making it suitable for lighting and appliance branch circuits, with an operational temperature range of -25 to 70 °C.

Key Features & Specifications
  • Type: Molded Case Circuit Breaker, Thermal-Magnetic Protection with Long-Time and Instantaneous (LI) Trip
  • Voltage Rating: 277V AC
  • Current Rating: 20A
  • Dimensions: 6.4 in (162.6 mm) H x 1.5 in (38.1 mm) W x 4.13 in (104.90 mm) D
  • Standards: UL Listed
  • Applications: Commercial and Industrial Lighting/Appliance Branch Circuit Protection
  • Switch Type: Circuit Breaker
  • Configuration: Single-Pole
  • Temp Rating: -13–158 °F (-25–70 °C)
  • Phase: 1
  • AIC rating: 18kA@277V
  • Connection: I-Line Style Plug-In
  • Poles: 1
  • Protection: Thermal Magnetic
  • Functions: LI - Long-Time and Instantaneous Trip
  • Frame Size: F Frame
  • Certification: UL Listed
  • Family: I-Line
  • Country of Origin: Mexico


Product Identification
  • UPC: 785901368366
  • GTIN: 00785901368366