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Siemens JJ62B300 - Molded Case Circuit Breaker 300A 600V

Siemens
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Siemens JJ62B300 is a 2-pole molded case circuit breaker from the JJ Frame family, designed to provide LI (Long-Time and Instantaneous) overcurrent protection in electrical distribution systems. It is rated for 300A at 600VAC and features a thermal magnetic trip mechanism, with an interrupting capacity of 25kA at 480VAC. The unit weighs 22 lb and uses a bolt-on connection for secure installation in panelboards and switchboards. This breaker complies with industry standards for reliable circuit protection in single-phase applications. It is typically deployed in industrial and commercial settings requiring robust overcurrent protection.

Key Features & Specifications
  • Type: JJ Molded Case Circuit Breaker
  • Functions: LI - Long-Time and Instantaneous
  • Current Rating: 300A
  • Voltage Rating: 600VAC
  • Number of Poles: 2
  • Phase: 1
  • Interrupt Rating: 25kA at 480V
  • Protection: Thermal Magnetic
  • Connection: Bolt-On
  • Weight: 22 lb


Part Number: JJ62B300