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Square D LIL26300 - Molded Case Circuit Breaker 300A 2-Pole 600V

Square D
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Square D LIL26300 is a 2-pole, 300A molded case circuit breaker from the LIL Series, designed for overload and short-circuit protection in commercial and industrial power distribution systems. It utilizes a thermal magnetic trip unit with LI (Long-Time and Instantaneous) functions, operates at a maximum voltage of 600V, and delivers a high interrupting capacity of 200kA at 480V. The breaker features a feed-thru connection, weighs 35 lb, and is built on an L Frame for unit mount or I-Line construction, including a push-to-trip feature for safe manual operation. It is a current-limiting type breaker compliant with industry standards for use in demanding environments. Typical applications include protecting feeders and branch circuits in panelboards, switchboards, and motor control centers.

Key Features & Specifications
  • Manufacturer: Square D
  • Model: LIL26300
  • Type: LIL
  • Item Subcategory: Molded Case
  • Family: LIL Series
  • Current Rating: 300A
  • Number of Poles: 2
  • Maximum Voltage: 600V
  • Interrupt Rating: 25kA @ 600VAC; 200kA @ 480V
  • Frame Size: L Frame
  • Functions: LI - Long-Time and Instantaneous
  • Protection: Thermal Magnetic
  • Connection: Feed-Thru
  • Phase: 1
  • Weight: 35 lb
  • Mounting Type: Unit Mount, I-Line
  • Breaker Type: Molded Case, Current Limiting
  • Features: Push-to-Trip, Flexible Termination


Part Number: LIL26300