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Siemens JD63B350H - Molded Case Circuit Breaker 350A 600V 3P

Siemens
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Siemens JD63B350H is a molded case circuit breaker designed for providing reliable overcurrent and short-circuit protection in three-phase electrical systems. It features a 600V AC voltage rating and a 350A continuous current rating, housed within a robust JD frame with a bolt-on connection for secure installation. The breaker utilizes a thermal-magnetic trip mechanism for 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, is RoHS compliant, and offers an interrupting capacity of 35kA at 480V AC, making it suitable for industrial power distribution, panelboards, and switchgear applications.

Key Features & Specifications
  • Type: Molded Case Circuit Breaker, Thermal Magnetic Protection, LI (Long-Time & Instantaneous) Functions
  • Voltage Rating: 600V AC
  • Current Rating: 350A
  • Frame Size: JD Frame
  • Poles: 3
  • Connection: Bolt-On
  • AIC Rating: 35kA @ 480V AC
  • Phase: 3
  • Protection: Thermal Magnetic
  • Standards & Certification: UL, IEC, RoHS
  • Operating Temperature: -25°C to +70°C (-13°F to 158°F)
  • Weight: 27 lb
  • Family: Sentron Series


Product Identification
  • GTIN: 00783643239869