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Square D IL34300 - Molded Case 300A 480V (3-Pole I-Line)

Square D
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Square D IL34300 is a three-pole molded case circuit breaker from the I-Limiter family, designed to provide long-time and instantaneous (LI) protection for three-phase power distribution systems. It is rated for 300A at 480V AC, with a high interrupting capacity of 200kA at 480V, and utilizes a thermal magnetic trip unit for reliable overcurrent protection. The breaker features an I-Line style plug-in connection for straightforward installation in compatible busway systems, and weighs 45 lb. This unit is built to meet rigorous industry standards for industrial and commercial electrical infrastructure, ensuring dependable performance in demanding environments. Typical applications include main or feeder protection in switchboards, panelboards, and busway systems requiring current-limiting capabilities.

Key Features & Specifications
  • Manufacturer: Square D
  • Item Subcategory: Molded Case
  • Family: I-Limiter
  • Type: IL
  • Weight: 45 lb
  • Functions: LI - Long-Time and Instantaneous
  • Voltage Rating: 480V
  • Poles: 3
  • Connection: I-Line Style Plug-In
  • Protection: Thermal Magnetic
  • AIC rating: 200kA@480V
  • Phase: 3
  • Current Rating: 300A
  • Part Number: IL34300
  • Frequency: 50-60 Hz
  • Enclosure: Open (None)