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Square D FAB34040 - Molded Case Circuit Breaker 40A 480V 3P

Square D
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Square D FAB34040 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, housed within a compact F-frame measuring 162.6 mm H x 114.3 mm W x 104.9 mm D and weighing 6.44 lb. The breaker utilizes a thermal-magnetic trip unit for combined long-time and instantaneous (LI) protection and offers an interrupting capacity of 18kA at 480V. Its I-Line style bolt-on connection ensures secure integration into compatible panelboards for applications such as motor control and feeder circuit protection.

Key Features & Specifications
  • Type: Molded Case Circuit Breaker, Thermal-Magnetic Protection, FAB Type
  • Voltage Rating: 480V AC
  • Current Rating: 40A
  • Dimensions: 162.6 mm H x 114.3 mm W x 104.9 mm D (6.4 in x 4.5 in x 4.13 in)
  • Standards: Designed for industrial compliance
  • Applications: Industrial power distribution, motor control, feeder circuits
  • Switch Type: Circuit Breaker
  • Configuration: 3-Pole
  • Phase: 3-Phase
  • AIC Rating: 18kA @ 480V
  • Connection: I-Line Style Bolt-On
  • Poles: 3
  • Protection: Thermal Magnetic
  • Functions: Long-Time and Instantaneous (LI)
  • Frame Size: F Frame
  • Weight: 6.44 lb


Product Identification
  • GTIN: 00785901128700