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Square D FJA34040SA - Molded Case Circuit Breaker 40A 480V 3P

Square D
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Square D FJA34040SA is a molded case circuit breaker designed for providing reliable overcurrent protection in three-phase industrial power distribution systems. It features a 40A current rating and a 480V AC voltage rating, engineered to interrupt up to 65kA short-circuit currents. The breaker is constructed as a 3-pole, thermal-magnetic unit with an I-Line style plug-in connection for simplified installation, and it incorporates LI (Long-time and Instantaneous) trip functions for coordinated protection. This Powerpact FJA family device complies with relevant industry standards for safety and performance, making it suitable for use in panelboards, switchboards, and industrial control panels.

Key Features & Specifications
  • Type: Molded Case Circuit Breaker, Thermal-Magnetic Protection with LI (Long-time & Instantaneous) Trip Functions
  • Voltage Rating: 480V AC
  • Current Rating: 40A
  • Frame: Powerpact FJA
  • AIC Rating: 65kA at 480V AC
  • Poles: 3
  • Phase: 3-Phase
  • Connection: I-Line Style Plug-In
  • Protection: Thermal Magnetic
  • Weight: 8 lb
  • Standards: Meets applicable UL and IEC standards
  • Applications: Industrial power distribution, panelboards, switchboards, motor control centers