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Siemens LD63B300L - Molded Case Circuit Breaker 300A 600V 3P

Siemens
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Siemens LD63B300L 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 LD frame with dimensions of 14.961" x 8.661" x 6.693" and a weight of 19.533 lb. The breaker utilizes a thermal-magnetic trip unit with long-time and instantaneous (LI) functions to ensure coordinated protection and complies with relevant industry standards for safety and performance. Its feed-thru connection and 35kA interrupting capacity at 480V make it suitable for a wide range of commercial and industrial applications, including panelboards and switchboards.

Key Features & Specifications
  • Type: Molded Case Circuit Breaker, Thermal-Magnetic Protection
  • Voltage Rating: 600V AC
  • Current Rating: 300A
  • Dimensions: 14.961" L x 8.661" W x 6.693" H
  • Standards: Designed to meet applicable industry standards
  • Applications: Industrial power distribution, panelboards, switchboards
  • Phase: 3
  • AIC Rating: 35kA @ 480V
  • Connection: Feed-Thru
  • Poles: 3
  • Protection: Thermal Magnetic
  • Functions: LI (Long-Time and Instantaneous)
  • Frame Size: LD Frame
  • Weight: 19.533 lb


Product Identification
  • UPC: 783643010956
  • GTIN: 00783643010956