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Allen-Bradley 140U-K3D3-D30 - Molded Case Breaker 300A 600V

Allen-Bradley
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The Allen-Bradley 140U-K3D3-D30 is a Bulletin 140U molded case circuit breaker designed for overcurrent protection in industrial power distribution systems. This three-phase, 300A unit provides thermal-magnetic protection with LI (Long-Time and Instantaneous) functions at a voltage rating of 600V AC. The breaker features a bolt-on connection, weighs 13 lb, and offers a high interrupting capacity of 35kA at 480V. It complies with industry standards for molded case circuit breakers and is suitable for use in panelboards, switchboards, and motor control centers.

Key Features & Specifications
  • Type: Molded Case Circuit Breaker
  • Voltage Rating: 600V AC
  • Current Rating: 300A
  • Poles: 3
  • Phase: 3
  • Connection: Bolt-On
  • Protection: Thermal Magnetic
  • AIC Rating: 35kA@480V
  • Functions: LI - Long-Time and Instantaneous
  • Weight: 13 lb
  • Family: Bulletin 140U
  • Item Subcategory: Molded Case