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Siemens JD63M400L - Molded Case Circuit Breaker 400A 600V 3P

Siemens
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Siemens JD63M400L is a molded case circuit breaker from the Sentron Series designed for providing reliable overcurrent and short-circuit protection in three-phase industrial power distribution systems. It features a 400A 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 functions, is rated for an interrupting capacity of 35kA at 480V, and operates within a temperature range of -25°C to 70°C. It complies with UL and IEC standards, adheres to RoHS directives, and is typically applied in 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: 400A
  • Poles: 3
  • Phase: 3-Phase
  • AIC Rating: 35kA @ 480V AC
  • Connection: Feed-Thru
  • Protection Functions: LI (Long-Time & Instantaneous)
  • Frame Size: JD Frame
  • Trip Type: Thermal-Magnetic
  • Standards & Certification: UL, IEC, RoHS
  • Operating Temperature: -25°C to +70°C
  • Weight: 24 lb


Product Identification
  • Manufacturer Part Number: JD63M400L
  • Family: Siemens Sentron Series