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Siemens UFC4125G - Breaker Type Bus Plug 125A 600V (3-Phase, 4-Wire)

Siemens
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Siemens UFC4125G is a breaker type bus plug designed for overcurrent protection and power distribution in XL-U series busway systems. This 3-phase, 4-wire unit operates at 600V AC with a 125A current rating and an interrupting capacity of 35kA at 480V. The bus plug weighs 55 lb and is constructed with an ITE frame circuit breaker compatible with FD frames, supporting both aluminum and copper busway configurations. It is UL 857 certified, ensuring compliance with rigorous safety and performance standards for industrial electrical distribution. Typical applications include modular power distribution in manufacturing facilities, commercial buildings, and data centers requiring flexible, high-capacity busway connections.

Key Features & Specifications
  • Type: Breaker Type Bus Plug
  • Manufacturer: Siemens
  • Family: XL-U
  • Type: UFC
  • Weight: 55 lb
  • Wire: 4
  • Voltage Rating: 600V
  • Compatible Frames: FD
  • AIC rating: 35kA@480V
  • Phase: 3
  • Current Rating: 125A
  • Amperage Rating: 125A
  • Voltage: 600V AC
  • Phase Configuration: 3-Phase, 4-Wire
  • Series: XL-U
  • Frame: FD
  • Interrupt Rating: 35kA at 480V
  • Suitable for XL-U Series aluminum and copper busway systems
  • UL 857 Certified