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Square D PBLXI36300 - 300A 3-Pole Breaker (600V, 200kA)

Square D
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Square D PBLXI36300 is a 300A, 600V, 3-pole I-Line plug-in molded case circuit breaker designed for primary circuit protection in industrial power distribution systems. It delivers a high interrupting capacity of 200kA at 480V AC and utilizes thermal-magnetic trip technology for reliable overload and short-circuit protection. The unit weighs 185 lb, features a 3-wire configuration, and mounts via a plug-on connection to I-Line panelboards. It is UL Listed, CSA, and CE certified, meeting rigorous safety and performance standards. This breaker is typically applied in commercial and industrial settings requiring robust branch circuit protection.

Key Features & Specifications
  • Manufacturer: Square D
  • Model: PBLXI36300
  • Type: PBLXI
  • Family: I-Line
  • Item Subcategory: Breaker Type
  • Current Rating: 300A
  • Voltage Rating: 600V AC
  • Phase: 3
  • Poles: 3
  • Wire: 3
  • AIC Rating: 200kA @ 480V AC
  • Interrupt Rating: 30kA @ 480V AC
  • Mounting Type: I-Line Plug-On
  • Trip Unit: Thermal-Magnetic
  • Series/Frame: LA Series
  • Weight: 185 lb
  • Certifications: UL Listed, CSA, CE