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Square D PTMA36300GNCL - Breaker Type 300A 600V (3-Phase Bus Plug)

Square D
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Square D PTMA36300GNCL is a breaker type bus plug designed for overcurrent protection in 600-volt busway systems. This unit is rated for 300 amps, 3-phase, 4-wire applications, with an AIC rating of 65kA at 480V. It features a bolt-on mounting style within the I-Line family, weighs 225 lb, and is constructed with a durable MA frame for reliable performance. The bus plug complies with industry standards for industrial and commercial power distribution environments. It is typically used in manufacturing facilities, data centers, and large commercial buildings requiring robust circuit protection.

Key Features & Specifications
  • Manufacturer: Square D
  • Item Subcategory: Breaker Type
  • Family: I-Line
  • Type: PTMA
  • Weight: 225 lb
  • Wire: 4
  • Voltage Rating: 600V
  • AIC rating: 65kA@480V
  • Phase: 3
  • Current Rating: 300A
  • Part Number: PTMA36300GNCL
  • Amperage: 300A
  • Voltage: 600V
  • Phases: 3P4W (3 Phase 4 Wire)
  • Mounting Type: Bolt-On
  • Series: I-Line
  • Frame: MA Frame
  • Application: Bus Plug
  • Interrupt Rating: 18kA
  • Trip Unit: Adjustable Trip
  • Ground: Yes