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Square D LLN36400CU33X - Molded Case 400A 600V 3-Pole

Square D
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Square D LLN36400CU33X is a molded case circuit breaker from the Powerpact family, designed for overcurrent protection in three-phase power distribution systems. It is rated for 400A at 600V with a solid-state LSI trip unit providing long-time, short-time, and instantaneous protection functions, and an interrupting capacity of 100kA at 480V. This three-pole breaker features a plug-in connection within an L Frame construction and weighs 20 lb. It complies with industry standards for molded case circuit breakers. Typical applications include industrial switchboards, panelboards, and motor control centers requiring precise coordination and high fault current handling.

Key Features & Specifications
  • Type: LLN
  • Family: Powerpact
  • Functions: LSI - Long-Time, Short-Time and Instantaneous
  • Frame Size: L Frame
  • Voltage Rating: 600V
  • Current Rating: 400A
  • Poles: 3
  • Phase: 3
  • Connection: Plug-In
  • Protection: Solid State
  • AIC rating: 100kA@480V
  • Weight: 20 lb