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Schneider Electric PTMH36300GNH - Breaker Type 300A (600V Bus Plug)

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Square Electric PTMH36300GNH is a breaker-type bus plug designed for overcurrent protection and power distribution in I-Line busway systems. It operates at 600V with a 300A current rating and features a 65kA interrupting capacity at 480V, supporting 3-phase, 4-wire configurations with an integral ground bus. The unit weighs 225 lb, uses a 4-wire setup, and incorporates a thermal magnetic trip unit with an M-frame breaker in a horizontal mounting arrangement. It complies with industry standards for industrial and commercial electrical distribution, accommodating conductor sizes from AWG 3/0 to 500 kcmil for phases and neutral. This bus plug is typically applied in manufacturing facilities, data centers, and large commercial buildings requiring reliable branch circuit protection.

Key Features & Specifications
  • Manufacturer: Schneider Electric
  • Item Subcategory: Breaker Type
  • Family: I-Line
  • Type: PTMH
  • Weight: 225 lb
  • Wire: 4
  • Voltage Rating: 600V
  • AIC rating: 65kA@480V
  • Phase: 3
  • Current Rating: 300A
  • Amperage: 300 A
  • Voltage: 600 V AC
  • Poles: 4 (3 phase + neutral)
  • Mounting Type: Horizontal
  • Frame: M-Frame
  • Interrupt Rating: 25 kA at 600 V AC, 65 kA at 480 V AC, 100 kA at 240 V AC
  • Trip Unit: Thermal Magnetic
  • Conductor Range: AWG 3/0 to 500 kcmil (phase and neutral), AWG 6 to 300 kcmil (ground)