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Siemens JFC3M300 - Molded Case Circuit Breaker 300A 415V

Siemens
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Siemens JFC3M300 is a molded case circuit breaker from the Sentron Series designed for magnetic-only instantaneous circuit protection. It is rated for 300A at 415V with a 40kA interrupting capacity, ensuring high fault current interruption in three-phase systems. This 3-pole unit features a bolt-on connection and weighs 22 lb, built for robust industrial and commercial applications. The breaker complies with industry standards for reliable performance in demanding environments. Typical applications include motor protection and distribution systems requiring instantaneous trip response.

Key Features & Specifications
  • Manufacturer: Siemens
  • Item Subcategory: Molded Case
  • Family: Sentron Series
  • Type: JFC
  • Weight: 22 lb
  • Functions: I - Instantaneous
  • Voltage Rating: 415V
  • Poles: 3
  • Connection: Bolt-On
  • Protection: Magnetic Only
  • AIC rating: 40kA@415V
  • Phase: 3
  • Current Rating: 300A
  • Amperage: 300A
  • Interrupt Rating: 40kA at 415V
  • Series/Frame: JFC
  • Type: Molded Case Circuit Breaker