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Square D NEF36900LSG - Molded Case Circuit Breaker 900A 600V 3-Pole

Square D
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Square D NEF36900LSG is a 3-pole molded case circuit breaker designed for primary overcurrent protection in industrial and commercial power distribution systems. It is rated for 900 amperes at 600 volts AC, featuring a solid-state Micrologic trip unit with LSIG (Long-Time, Short-Time, Instantaneous and Ground Fault) protection functions for precise coordination. The unit weighs 82 lb, utilizes a bolt-on connection, and is built on an NE frame size for robust physical construction. This breaker complies with UL listing and CSA certification standards, ensuring reliable performance in demanding environments. Typical applications include integration into switchgear and panelboards for three-phase power systems requiring high interrupting capacity.

Key Features & Specifications
  • Manufacturer: Square D
  • Model: NEF36900LSG
  • Type: Molded Case Circuit Breaker
  • Family: Micrologic
  • Functions: LSIG - Long-Time, Short-Time, Instantaneous and Ground Fault
  • Frame Size: NE Frame
  • Current Rating: 900A
  • Voltage Rating: 600V
  • Poles: 3
  • Phase: 3
  • Connection: Bolt-On
  • Protection: Solid State
  • AIC Rating: 100kA@480V
  • Weight: 82 lb
  • UL Listed and CSA Certified