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Siemens JJ3B300 - 3-Pole Molded Case Breaker 300A

Siemens
Price
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The Siemens JJ3B300 is a 3-pole molded case circuit breaker from the JJ Frame family, designed to provide thermal-magnetic protection for industrial electrical systems. It is rated for 600V AC, 300A continuous current, and delivers an interrupting capacity of 25kA at 480V, with LI (Long-Time and Instantaneous) trip functions for overcurrent and short-circuit protection. This bolt-on unit weighs 22 lb and is constructed for robust, reliable operation in demanding environments. It complies with industry standards for molded case breakers and is typically applied in panelboards, switchboards, and motor control centers for three-phase power distribution.

Key Features & Specifications
  • Type: Molded Case Circuit Breaker, Thermal Magnetic, LI (Long-Time and Instantaneous) trip
  • Voltage Rating: 600V AC
  • Current Rating: 300A
  • Poles: 3
  • Phase: 3
  • AIC Rating: 25kA@480V
  • Connection: Bolt-On
  • Weight: 22 lb
  • Family: JJ Frame
  • Functions: LI - Long-Time and Instantaneous
  • Protection: Thermal Magnetic
  • Item Subcategory: Molded Case


Product Identification
  • UPC: Not specified
  • GTIN: Not specified