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LLN36250CU31X

Square D
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Square D LLN36250CU31X is a Powerpact L molded case circuit breaker designed for overcurrent protection in industrial and commercial power distribution systems. This three-phase, 250-amp unit operates at a maximum voltage rating of 600V AC and provides solid-state protection with LI (Long-Time and Instantaneous) trip functions. The breaker features a plug-in connection within an L Frame, weighs 20 lb, and includes a unit mount design with an electronic Micrologic 3.3 trip unit. It is UL 489 listed and carries an interrupting rating of 100kA at 480V AC, suitable for high-fault-current applications. Typical applications include motor control centers, switchboards, and panelboards in manufacturing plants, data centers, and large commercial facilities.

Key Features & Specifications
  • Manufacturer: Square D
  • Model: LLN36250CU31X
  • Item Subcategory: Molded Case
  • Family: Powerpact
  • Type: LLN
  • Weight: 20 lb
  • Functions: LI - Long-Time and Instantaneous
  • Frame Size: L Frame
  • Voltage Rating: 600V AC
  • Poles: 3
  • Connection: Plug-In
  • Protection: Solid State
  • AIC rating: 100kA@480V
  • Phase: 3
  • Current Rating: 250 A
  • Amperage: 250 A
  • Voltage: 600 VAC
  • Interrupt Rating: 18/35/65 kA
  • Trip Unit: Electronic Micrologic 3.3
  • Mounting Type: Unit Mount
  • Wire Size Range: 2 AWG to 600 kcmil Cu, 2 AWG to 500 kcmil Al
  • Enclosure Type: NEMA 12
  • Temperature Rating: 122°F
  • Certifications: UL 489 Listed


Square D LLN36250CU31X - Molded Case Circuit Breaker 250A 600V