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Square D PTMA36400GNCLH - 400A 3-Pole I-Line Bus Plug

Square D
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Square D PTMA36400GNCLH is a 400A, 3-pole I-Line bus plug circuit breaker designed to provide thermal-magnetic overload and short-circuit protection in power distribution systems. It operates at a voltage rating of 600VAC and 250VDC, with an interrupting rating of 65kAIC at 480VAC. The unit features a Type L frame, load side lug terminal connections, and a plug-on mounting configuration for use in I-Line panelboards and switchboards, weighing 225 lb. It is UL and CSA certified for compliance with industry safety standards. This breaker is typically applied in industrial and commercial settings for reliable branch circuit protection.

Key Features & Specifications
  • Manufacturer: Square D
  • Part Number: PTMA36400GNCLH
  • Amperage: 400A
  • Voltage: 600VAC, 250VDC
  • Poles: 3
  • Phase: 3
  • Mounting Type: I-Line Plug-On
  • Frame Type: L
  • Trip Unit: Thermal Magnetic
  • Interrupting Rating: 65kAIC at 480V
  • Terminal Connection: Load Side Lug
  • Wire: 4
  • Weight: 225 lb
  • Certifications: UL, CSA