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Siemens JXD63B400L - Molded Case Circuit Breaker 350A 600V 3P

Siemens
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Siemens JXD63B400L 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 350A continuous current rating, housed within a compact, robust JD frame with dimensions of 8.661" x 12.992" x 6.713" (220 x 330 x 170.5 mm) and a weight of 19.048 lb. The breaker utilizes a thermal-magnetic trip unit for combined long-time and instantaneous (LI) protection functions, ensuring compliance with UL and IEC standards as well as RoHS directives. Its 35kA interrupting capacity at 480V and feed-thru connection make it suitable for main feeder and branch circuit protection in commercial and industrial panels, operating reliably within a temperature range of -25°C to 70°C (-13°F to 158°F).

Key Features & Specifications
  • Type: Molded Case Circuit Breaker, Thermal-Magnetic Protection, JXD Type
  • Voltage Rating: 600V AC
  • Current Rating: 350A
  • Dimensions: 8.661 in x 12.992 in x 6.713 in (220 mm x 330 mm x 170.5 mm)
  • Standards: RoHS Compliant
  • Applications: Industrial Power Distribution, Main Feeder & Branch Circuit Protection
  • Switch Type: Circuit Breaker
  • Configuration: Fixed
  • Phase: 3
  • AIC rating: 35kA @ 480V AC
  • Connection: Feed-Thru
  • Poles: 3
  • Protection: Thermal Magnetic
  • Functions: Long-Time and Instantaneous (LI)
  • Frame Size: JD Frame
  • Temp Rating: -25°C to 70°C (-13°F to 158°F)
  • Certification: UL, IEC
  • Family: Sentron Series
  • Country of Origin: Mexico
  • Weight: 19.048 lb


Product Identification
  • UPC: 783643009660
  • GTIN: 00783643009660