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Square D NEF36900LIG - Molded Case Circuit Breaker 900A 600V

Square D
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Square D NEF36900LIG is a three-pole molded case circuit breaker from the Micrologic family, designed for solid-state protection in high-current three-phase electrical systems. It is rated for 900 amperes at 600 volts AC, with an interrupting capacity of 100kA at 480V, and provides Long-Time, Instantaneous, and Ground Fault (LIG) trip functions for precise overload, short circuit, and ground fault protection. The unit features an NE frame size, weighs 82 lb, and uses a bolt-on connection for secure panel mounting. This breaker complies with industry standards for reliable fault interruption in demanding environments. Typical applications include industrial power distribution and heavy equipment protection where robust solid-state trip control is required.

Key Features & Specifications
  • Manufacturer: Square D
  • Part Number: NEF36900LIG
  • Item Subcategory: Molded Case
  • Family: Micrologic
  • Type: NEF
  • Weight: 82 lb
  • Functions: LIG - Long-Time, Instantaneous and Ground Fault
  • Frame Size: NE Frame
  • Voltage Rating: 600V AC
  • Current Rating: 900 Amps
  • Poles: 3
  • Phase: 3
  • Connection: Bolt-On
  • Protection: Solid State
  • AIC Rating: 100kA@480V
  • Interrupt Rating: 30kA @ 480V
  • Trip Unit: LI (Long Time and Instantaneous)
  • Mounting Type: Panel Mount
  • Circuit Breaker Type: Molded Case, Thermal Magnetic