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Siemens LJ63B600 - Molded Case Circuit Breaker 600A 600V

Siemens
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Siemens LJ63B600 is a 600A, 3-pole molded case circuit breaker from the LJ Series, designed for overcurrent protection in industrial and commercial power distribution systems. It utilizes a thermal magnetic trip unit with LI (Long-Time and Instantaneous) functions, rated for 600V AC and a 35kA interrupting capacity at 480V AC. The unit features a bolt-on connection, weighs 25 lb, and is built for 3-phase applications. It is UL Listed and CSA certified, meeting North American safety standards. This breaker is suited for heavy-duty electrical systems requiring reliable short-circuit and overload protection.

Key Features & Specifications
  • Type: Molded Case
  • Family: LJ Series
  • Functions: LI - Long-Time and Instantaneous
  • Voltage Rating: 600V AC
  • Current Rating: 600A
  • Poles: 3
  • Phase: 3
  • Connection: Bolt-On
  • Protection: Thermal Magnetic
  • AIC Rating: 35kA at 480V
  • Weight: 25 lb
  • Certifications: UL Listed, CSA