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Siemens LJ63B500 - Molded Case Circuit Breaker 500A 600VAC

Siemens
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Siemens LJ63B500 is a 3-pole, 500A molded case circuit breaker from the LJ Series, designed for reliable overcurrent protection in commercial and industrial power distribution systems. It operates at a voltage rating of 600VAC with a 35kA interrupting capacity at 480V, utilizing a thermal-magnetic trip unit for long-time and instantaneous protection. The unit weighs 25 lb, features a bolt-on connection, and is rated for 40°C operation with a non-interchangeable trip unit. It is UL Listed and CSA Certified for reverse fed installations. This breaker is suitable for new installations or replacements in standard electrical panels.

Key Features & Specifications
  • Type: LJ
  • Functions: LI - Long-Time and Instantaneous
  • Voltage Rating: 600VAC
  • Current Rating: 500A
  • Poles: 3
  • Phase: 3
  • Connection: Bolt-On
  • Protection: Thermal Magnetic
  • AIC Rating: 35kA @ 480V
  • Weight: 25 lb
  • Certifications: UL Listed, CSA Certified
  • Temperature Rating: 40°C
  • Application: Commercial and Industrial Power Distribution


Part Number: LJ63B500