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Square D PTMH36400GNV - M-Frame 400A Bus Plug (600V)

Square D
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Square D PTMH36400GNV is a 400A bus plug circuit breaker unit designed for primary overcurrent protection in I-Line busway systems. It operates at 600V with a 65kA interrupting capacity at 480V and utilizes a thermal magnetic trip mechanism for reliable circuit protection. This 4-pole, 4-wire unit features a compact, totally enclosed M-frame design weighing 225 lb with sandwich-type construction for superior voltage drop characteristics and a durable polyester powder coat finish. It complies with industry standards for industrial electrical distribution and is engineered for use in three-phase power systems requiring integral ground bus support. Typical applications include manufacturing facilities, data centers, and commercial buildings where busway branch circuit protection is needed.

Key Features & Specifications
  • Type: PTMH
  • Family: I-Line
  • Item Subcategory: Breaker Type
  • Manufacturer: Schneider Electric
  • Current Rating: 400A
  • Voltage Rating: 600V
  • Phase: 3
  • Poles: 4
  • Wiring: 4-wire with integral ground bus
  • Frame: M-Frame
  • AIC Rating: 65kA@480V
  • Weight: 225 lb
  • Mounting Type: Bus Plug
  • Trip Unit: Thermal Magnetic
  • Conductor Range: AWG 3/0 to 500 kcmil (3 phase and neutral), AWG 6 to 300 kcmil (ground)