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Square D FA14040A - Molded Case Circuit Breaker 40A 1-Pole 277V

Square D
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Square D FA14040A is a 1-pole, 40A molded case circuit breaker from Schneider Electric designed for overload and short circuit protection in 277V applications. It features a thermal magnetic trip unit with long time and instantaneous functions, providing an 18kA interrupting capacity at 277V. The unit measures 6.4 in (162.6 mm) x 1.5 in (38.1 mm) x 4.13 in (104.90 mm) and weighs 6 lb, with an I-Line style plug-in connection for unit mount installation. It is UL and CSA certified for safety and performance standards. This breaker is suitable for single-phase industrial and commercial power distribution systems.

Key Features & Specifications
  • Manufacturer: Schneider Electric
  • Part Number: FA14040A
  • Type: FA
  • Family: I-Line
  • Item Subcategory: Molded Case
  • Poles: 1
  • Current Rating: 40A
  • Voltage Rating: 277V
  • Phase: 1
  • Protection: Thermal Magnetic
  • Functions: Long Time and Instantaneous Trip
  • AIC rating: 18kA@277V
  • Connection: I-Line Style Plug-In
  • Mounting Type: Unit Mount
  • Wire Size: AWG 14 to AWG 1/0, Al/Cu
  • 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)
  • Weight: 6 lb
  • Temp Rating: -13–158 °F (-25–70 °C)
  • Certification: UL, CSA
  • Country of Origin: Mexico


FA14040A