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Square D PTMH36300 - Breaker Type Bus Plug 300A 600V

Square D
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Square D PTMH36300 Bus Plug is a 300A, 3-phase, 3-wire circuit breaker type bus plug designed for primary overcurrent protection and branch circuit disconnection in industrial power distribution systems. It operates at a maximum voltage rating of 600V AC and delivers a high interrupting capacity of 65kA at 480V AC, ensuring robust fault current handling. The unit weighs 225 lb and is constructed as part of the I-Line family, featuring a compact, modular design for direct mounting on Square D I-Line panelboards and switchboards. It complies with UL and NEMA standards for industrial electrical safety and reliability. Typical applications include manufacturing plants, data centers, and commercial facilities requiring centralized power distribution with selective coordination.

Key Features & Specifications
  • Type: PTMH, circuit breaker type bus plug, 3-wire, 3-phase
  • Voltage Rating: 600V AC
  • Current Rating: 300A
  • AIC Rating: 65kA at 480V AC
  • Phase: 3
  • Wire: 3
  • Weight: 225 lb
  • Family: I-Line
  • Item Subcategory: Breaker Type


Product Identification
  • UPC: Not available
  • GTIN: Not available