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Siemens JD63B300H - Molded Case Circuit Breaker 300A 600V 3P

Siemens
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Save $3,875.25
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Siemens JD63B300H is a molded case circuit breaker designed for providing reliable overcurrent and short-circuit protection in three-phase industrial power distribution systems. It features a 600V AC voltage rating and a 300A continuous current rating, housed within a robust JD frame with a bolt-on connection for secure installation. The breaker utilizes a thermal-magnetic trip unit providing both long-time and instantaneous (LI) protection functions and is constructed to operate within a temperature range of -25°C to 70°C (-13°F to 158°F). It complies with UL and IEC standards, adheres to RoHS directives, and offers an interrupting capacity of 35kA at 480V AC, making it suitable for protecting feeders and branch circuits in commercial and industrial panels.

Key Features & Specifications
  • Type: Molded Case Circuit Breaker, Thermal-Magnetic Protection, LI (Long-Time & Instantaneous) Functions
  • Voltage Rating: 600V AC
  • Current Rating: 300A
  • Frame Size: JD Frame
  • Poles: 3
  • Phase: 3
  • Connection: Bolt-On
  • AIC Rating: 35kA @ 480V AC
  • Protection: Thermal Magnetic
  • Temp Rating: -25°C to 70°C (-13°F to 158°F)
  • Standards: RoHS Compliant
  • Certification: UL, IEC
  • Weight: 27 lb
  • Family: Sentron Series


Product Identification
  • GTIN: 00783643239852