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Square D NEF36900LS - Molded Case Breaker 900A 600V (3-Pole)

Square D
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Square D NEF36900LS is a 3-pole molded case circuit breaker from the Micrologic family, designed for primary circuit protection in power distribution systems. It is rated for 600V and 900A, with a solid state electronic trip unit providing Long-Time and Short-Time (LS) protection functions. The breaker features a NE frame size, bolt-on connection, and weighs 82 lb, with an AIC rating of 100kA at 480V for high interrupting capacity. It complies with industry standards for 100% rated continuous operation in demanding electrical environments. This breaker is typically applied in industrial and commercial settings requiring reliable overcurrent protection for feeders and main service entrances.

Key Features & Specifications
  • Type: NEF Micrologic
  • Amperage Rating: 900A
  • Voltage Rating: 600V
  • Poles: 3
  • Phase: 3
  • Functions: LS - Long-Time and Short-Time
  • Frame Size: NE Frame
  • Protection: Solid State Electronic
  • Mounting: Bolt-On
  • Connection: Load Side Lug Terminals
  • Interrupt Rating: 100kA at 480V
  • Weight: 82 lb
  • 100% Rated


Part Number: NEF36900LS