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Siemens JJ3B350 - 3-Pole Molded Case Breaker 350A 600V

Siemens
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The Siemens JJ3B350 is a 3-pole molded case circuit breaker from the JJ Frame family, designed to provide LI (Long-Time and Instantaneous) protection for industrial power distribution systems. It is rated for 600V AC, 350A continuous current, and features a 25kA interrupting capacity at 480V, with a thermal magnetic trip mechanism for reliable overcurrent protection. This bolt-on breaker weighs 22 lb and is constructed for 3-phase applications, ensuring robust performance in demanding environments. It complies with industry standards for molded case circuit breakers, making it suitable for use in panelboards, switchboards, and motor control centers. Typical applications include protecting feeders, branch circuits, and heavy machinery in manufacturing plants, commercial buildings, and utility installations.

Key Features & Specifications
  • Type: Molded Case Circuit Breaker, JJ Frame, Thermal Magnetic
  • Voltage Rating: 600V AC
  • Current Rating: 350A
  • Poles: 3
  • Phase: 3
  • AIC Rating: 25kA@480V
  • Connection: Bolt-On
  • Protection: LI - Long-Time and Instantaneous
  • Weight: 22 lb
  • Functions: LI (Long-Time and Instantaneous)
  • Family: JJ Frame
  • Item Subcategory: Molded Case


Product Identification
  • UPC: Not available
  • GTIN: Not available