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Siemens LXD63B300 - Molded Case Circuit Breaker 300A 600V 3P

Siemens
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Siemens LXD63B300 is a molded case circuit breaker from the Sentron Series designed to provide reliable overcurrent and short-circuit protection for three-phase industrial power distribution systems. It features a 600V AC voltage rating and a 300A continuous current rating, housed within a compact LD frame with dimensions of 8.661" x 12.992" x 6.695" (HxWxD) and a weight of 25 lb. This thermal magnetic breaker, which is UL Listed, incorporates both long-time and instantaneous (LI) trip functions and offers an interrupting capacity of 35kA at 480V AC for robust fault protection. Its bolt-on connection and operational temperature range from -13°F to 158°F make it suitable for installation in industrial panels, switchgear, and motor control centers.

Key Features & Specifications
  • Type: Molded Case Circuit Breaker, Thermal Magnetic Protection, LXD Type
  • Voltage Rating: 600V AC
  • Current Rating: 300A
  • Frame Size: LD Frame
  • Poles: 3
  • Phase: 3-Phase
  • AIC Rating: 35kA @ 480V AC
  • Connection: Bolt-On
  • Protection Functions: LI (Long-Time and Instantaneous)
  • Trip Type: Thermal Magnetic
  • Certification: UL Listed
  • Operating Temperature: -13°F to 158°F (-25°C to 70°C)
  • Dimensions (HxWxD): 8.661 in x 12.992 in x 6.695 in (220 mm x 330 mm x 170 mm)
  • Weight: 25 lb (11.34 kg)
  • Family: Sentron Series
  • Country of Origin: Mexico


Product Identification
  • Manufacturer Part Number: LXD63B300