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Allen-Bradley 140U-I3C3-C50 - 3-Pole 50A Thermal Magnetic Breaker

Allen-Bradley
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Allen-Bradley 140U-I3C3-C50 is a molded case circuit breaker designed for providing reliable overcurrent protection in three-phase industrial power distribution systems. It features a 50A current rating and a 600V AC voltage rating, utilizing a thermal-magnetic trip unit for combined long-time and instantaneous (LI) protection functions. The breaker is constructed as a three-pole, bolt-on unit with a 35kA interrupting capacity at 480V AC, housed within the compact Bulletin 140U family frame. It is engineered to meet relevant industry standards for safety and performance in demanding environments, making it suitable for application in panelboards, switchboards, and industrial control panels.

Key Features & Specifications
  • Type: Molded Case Circuit Breaker, Thermal-Magnetic Protection
  • Voltage Rating: 600V AC
  • Current Rating: 50A
  • Poles: 3
  • Phase: 3
  • Connection: Bolt-On
  • AIC Rating: 35kA @ 480V AC
  • Protection Functions: Long-Time and Instantaneous (LI)
  • Family/Frame: Bulletin 140U
  • Weight: 4 lb


Product Identification
  • Manufacturer Part Number: 140U-I3C3-C50