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Square D NE1236LSG - Molded Case 1200A 600V 3-Pole I-Line Breaker

Square D
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Square D NE1236LSG is a 3-pole molded case circuit breaker from the I-Line family, designed for primary overcurrent and ground fault protection in industrial power distribution systems. It carries a 600V voltage rating and a 1200A continuous current rating, with a solid-state LSIG trip unit providing Long-Time, Short-Time, Instantaneous, and Ground Fault protection functions. This NE Frame breaker weighs 87 lb and features an I-Line style plug-in connection for direct mounting on Square D I-Line panelboards and switchboards. It is UL listed and CSA certified, with an interrupting capacity of 100kA at 480V AC for 3-phase systems. Typical applications include main or feeder protection in commercial and industrial facilities requiring high-ampacity, adjustable protection coordination.

Key Features & Specifications
  • Type: Square D I-Line Molded Case Circuit Breaker, NE Frame, Solid State Trip
  • Voltage Rating: 600V AC
  • Current Rating: 1200A
  • Poles: 3
  • Phase: 3
  • Connection: I-Line Style Plug-In
  • Protection: LSIG (Long-Time, Short-Time, Instantaneous, Ground Fault)
  • AIC Rating: 100kA@480V
  • Weight: 87 lb
  • Standards: UL 489, CSA C22.2 No. 5
  • Applications: Main or feeder protection in industrial panelboards, switchboards, and distribution systems


Product Identification
  • UPC: 785901185476
  • GTIN: 00785901185476