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Cutler Hammer JT3125FA - 3P 125A Bolt-On Circuit Breaker

Cutler Hammer
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Cutler Hammer JT3125FA is a three-pole, bolt-on circuit breaker designed for providing reliable overcurrent protection in three-phase industrial power distribution systems. It features a 125A current rating and a 600V AC voltage rating, utilizing a thermal-magnetic protection mechanism with long-time and instantaneous (LI) trip functions for coordinated system protection. The unit is constructed with a compact form factor measuring 6.5" x 3.5" x 4" and a weight of 0.5 lb, and it complies with major industry standards including UL, IEC, CSA, and CE. This breaker is engineered for integration into compatible JG frame panelboards and switchboards, making it suitable for a wide range of commercial and industrial applications requiring robust circuit protection.

Key Features & Specifications
  • Type: Three-pole, thermal-magnetic circuit breaker with bolt-on connection
  • Voltage Rating: 600V AC
  • Current Rating: 125A
  • Dimensions: 6.5 in (L) x 3.5 in (H) x 4 in (W)
  • Standards: UL Listed, IEC Rated, CSA Certified, CE Marked
  • Applications: Industrial power distribution, panelboards, switchboards
  • Switch Type: Circuit Breaker
  • Configuration: Fixed
  • Phase: 3
  • Poles: 3
  • Protection: Thermal Magnetic
  • Functions: Long-Time and Instantaneous (LI)
  • Connection: Bolt-On
  • Compatible Frames: JG Frame
  • Family: Series G
  • Country of Origin: Dominican Republic
  • Weight: 0.5 lb


Product Identification
  • UPC: 786685175478
  • GTIN: 00786685175478