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Siemens UFC4090 - Breaker Type 90A 600V 3-Phase Bus Plug

Siemens
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Siemens UFC4090 is a breaker-type bus plug designed for reliable power distribution and overcurrent protection in low voltage busway systems. This 90A, 600V, 3-phase unit supports a 4-wire configuration and delivers a 35kA interrupting capacity at 480V. Weighing 55 lb, it features a robust plug-in mounting design with a mechanical interlock for safe installation and removal, and it is compatible with FD frames within the XL-U family. The bus plug complies with UL 857 busway standards and is certified for indoor use with an IP40 enclosure rating. It is typically applied in industrial and commercial power distribution networks requiring secure and efficient electrical connections.

Key Features & Specifications
  • Type: Breaker Type
  • Family: XL-U
  • Current Rating: 90 Amps
  • Voltage Rating: 600 Volts AC
  • Phase: 3
  • Poles: 4
  • Wire: 4
  • AIC Rating: 35kA@480V
  • Compatible Frames: FD
  • Mounting Type: Plug-In Busway
  • Weight: 55 lb
  • Enclosure Rating: IP40
  • UL Certification: UL 857 Busway Standard
  • Mechanical interlock for safe installation/removal
  • Indoor use