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Square D PTMH36450G - Circuit Breaker Bus Plug 450A 600V 3-Phase

Square D
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Square D PTMH36450G is a 450A, 3-phase, 600V circuit breaker type bus plug designed for primary overcurrent protection and branch circuit disconnection in industrial power distribution systems. This unit provides a 65kA interrupting capacity at 480V and features a 3-wire configuration, ensuring robust fault current handling for high-capacity electrical networks. The bus plug weighs 225 lb and is constructed as part of the I-Line family, utilizing a PTMH type mechanism for reliable switching and thermal-magnetic trip coordination. It complies with applicable UL and NEMA standards for industrial electrical equipment, making it suitable for heavy-duty applications such as manufacturing plants, data centers, and large commercial facilities requiring centralized power distribution and load management.

Key Features & Specifications
  • Type: Circuit breaker type bus plug, thermal-magnetic trip, I-Line family
  • Voltage Rating: 600V AC
  • Current Rating: 450A
  • Phase: 3
  • Wire: 3
  • AIC Rating: 65kA@480V
  • Weight: 225 lb
  • Item Subcategory: Breaker Type
  • Family: I-Line
  • Type: PTMH


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