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Square D FA14040B - Molded Case 40A 277V Circuit Breaker

Square D
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Square D FA14040B is a molded case circuit breaker designed for overcurrent protection in electrical distribution systems. It features a 40A current rating and a 277V voltage rating with an 18kA interrupting capacity at 277V. This single-pole unit measures 6.4 in x 1.5 in x 4.13 in and weighs 6 lb, utilizing an I-Line style plug-in connection with thermal magnetic protection. It is UL and CSA certified and operates within a temperature range of -13 to 158 °F (-25 to 70 °C). The breaker is suitable for industrial applications requiring long time and instantaneous trip functions in single-phase systems.

Key Features & Specifications
  • Type: Molded Case
  • Voltage Rating: 277V
  • Current Rating: 40A
  • Dimensions: 6.4 in (162.6 mm) x 1.5 in (38.1 mm) x 4.13 in (104.90 mm) (Height x Width x Depth)
  • Standards: UL, CSA
  • Applications: Industrial electrical distribution
  • Poles: 1
  • Connection: I-Line Style Plug-In
  • Protection: Thermal Magnetic
  • Functions: Long Time and Instantaneous Trip
  • AIC rating: 18kA@277V
  • Phase: 1
  • Temp Rating: -13–158 °F (-25–70 °C)
  • Weight: 6 lb
  • Manufacturer: Schneider Electric
  • Family: I-Line
  • Type: FA
  • Country of Origin: Mexico