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Square D FA22040AB - Molded Case Breaker 40A 2-Pole

Square D
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Square D FA22040AB is a 2-pole, 40A molded case circuit breaker from the I-Line family, designed for overcurrent protection in commercial and industrial power distribution systems. It operates at 240V AC with a 10kA interrupting capacity and utilizes a thermal magnetic trip unit providing Long-Time and Instantaneous (LI) protection functions. The unit measures 6.4 in (162.6 mm) in height, 3 in (76.2 mm) in width, and 4.13 in (104.90 mm) in depth, weighs 6 lb, and features an I-Line style plug-in connection for straightforward installation in compatible panelboards and switchboards. This breaker is UL and CSA certified, ensuring compliance with North American safety standards, and is rated for operation in ambient temperatures from -13°F to 158°F (-25°C to 70°C). Typical applications include branch circuit protection in industrial control panels, lighting panels, and distribution boards requiring a compact, reliable thermal-magnetic solution.

Key Features & Specifications
  • Manufacturer: Schneider Electric
  • Type: FA
  • Poles: 2
  • Current Rating: 40A
  • Voltage Rating: 240V AC
  • Interrupt Rating: 10kA at 240V AC
  • Protection: Thermal Magnetic
  • Functions: LI - Long-Time and Instantaneous
  • Connection: I-Line Style Plug-In
  • Phase: 1
  • Dimensions: 6.4 in (162.6 mm) x 3 in (76.2 mm) x 4.13 in (104.90 mm) (Height x Width x Depth)
  • Weight: 6 lb
  • Temp Rating: -13–158 °F (-25–70 °C)
  • Country of Origin: Mexico
  • Certifications: UL, CSA
  • Application: Power Distribution


Part Number: FA22040AB