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Siemens JXD63B300L - Molded Case Circuit Breaker 300A 600V 3P

Siemens
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Siemens JXD63B300L 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 voltage rating, housed within a compact JD frame with dimensions of 8.661" x 12.992" x 6.705" (220mm x 330mm x 170mm) and a weight of 19.511 lb. The breaker utilizes a thermal-magnetic trip unit for long-time and instantaneous (LI) protection functions, offers a 35kA interrupting capacity at 480V, and is constructed for feed-thru connection. It complies with UL and IEC standards, adheres to RoHS directives, and operates reliably across a temperature range of -25°C to 70°C (-13°F to 158°F), making it suitable for integration into panelboards, switchboards, and industrial control panels.

Key Features & Specifications
  • Type: Molded Case Circuit Breaker, Thermal-Magnetic Protection, JD Frame
  • Voltage Rating: 600V AC
  • Current Rating: 300A
  • Dimensions: 8.661" L x 12.992" W x 6.705" H (220mm x 330mm x 170mm)
  • Standards: UL, IEC, RoHS Compliant
  • Applications: Industrial Power Distribution, Panelboards, Switchboards
  • Phase: 3
  • AIC Rating: 35kA @ 480V
  • Connection: Feed-Thru
  • Poles: 3
  • Protection: Thermal Magnetic
  • Functions: Long-Time and Instantaneous (LI)
  • Frame Size: JD Frame
  • Trip Type: Thermal-Magnetic
  • Temp Rating: -25°C to 70°C (-13°F to 158°F)
  • Weight: 19.511 lb
  • Family: Sentron Series
  • Country of Origin: Mexico


Product Identification
  • UPC: 783643009523
  • GTIN: 00783643009523