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Siemens JD63B300L - Molded Case Circuit Breaker 300A 3P (35kA AIC)

Siemens
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Siemens JD63B300L 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 300A current rating and a 600V AC voltage rating, housed within a robust JD frame with a feed-thru connection. The breaker utilizes a thermal-magnetic trip unit for combined long-time and instantaneous (LI) protection, offers an interrupting capacity of 35kA at 480V, and operates within a temperature range of -25°C to 70°C. It is certified to UL and IEC standards, complies with RoHS, and is engineered for integration into panelboards and switchgear for commercial and industrial applications.

Key Features & Specifications
  • Type: Molded Case Circuit Breaker, Thermal Magnetic Protection
  • Voltage Rating: 600V AC
  • Current Rating: 300A
  • Frame Size: JD Frame
  • Poles: 3
  • Phase: 3
  • AIC Rating: 35kA @ 480V
  • Connection: Feed-Thru
  • Protection: Thermal Magnetic (LI - Long-Time & Instantaneous)
  • Trip Type: Thermal Magnetic
  • Functions: Long-Time and Instantaneous
  • Standards: RoHS
  • Certification: UL, IEC
  • Temp Rating: -25°C to 70°C (-13°F to 158°F)
  • Family: Sentron Series
  • Weight: 19.533 lb


Product Identification
  • UPC: 783643009158
  • GTIN: 00783643009158