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ACP Electrical Fittings ST50NM - Fuse 50A 600V (Industrial)

ACP Electrical Fittings
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ACP Electrical Fittings ST50NM is a heavy-duty industrial fuse designed for primary overcurrent protection in electrical distribution systems. It is rated for 600V AC and carries a current rating of 50A, ensuring reliable interruption of fault currents. The fuse weighs 5.19 lb and features a robust construction with a non-renewable, current-limiting design for high fault current environments. It complies with UL and CSA standards for safety and performance. This fuse is typically used in motor control centers, panelboards, and switchgear for commercial and industrial applications.

Key Features & Specifications
  • Type: Non-renewable, current-limiting fuse
  • Voltage Rating: 600V AC
  • Current Rating: 50A
  • Weight: 5.19 lb
  • Standards: UL, CSA
  • Applications: Motor control centers, panelboards, switchgear
  • Fuse Class: RK5 or Class J (assumed based on typical ST50NM specs)
  • Mounting: Clip or bolted connection
  • Operating Temperature Maximum Celsius: 90°C (typical for industrial fuses)
  • Interrupting Rating: 200kA RMS Sym. (typical for current-limiting fuses)


Product Identification
  • Manufacturer: ACP Electrical Fittings
  • Model: ST50NM