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Siemens HHLXD63B300L - Molded Case Circuit Breaker 300A 600V

Siemens
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Siemens HHLXD63B300L is a 3-pole thermal magnetic molded case circuit breaker designed for overcurrent protection in industrial power distribution systems. It is rated for 300 Amps at 600 VAC with a 100kA interrupting capacity at 480V, utilizing LI (Long-Time and Instantaneous) trip functions for precise fault response. The unit features a bolt-on mounting type on an LD Frame, weighs 25 lb, and uses feed-thru connections for straightforward installation. This breaker complies with UL and IEC certifications and is suitable for 3-phase electrical systems operating at 40 °C ambient temperature.

Key Features & Specifications
  • Manufacturer: Siemens
  • Item Subcategory: Molded Case
  • Family: Sentron Series
  • Type: HHLXD
  • Weight: 25 lb
  • Functions: LI - Long-Time and Instantaneous
  • Frame Size: LD Frame
  • Voltage Rating: 600 VAC
  • Poles: 3
  • Connection: Feed-Thru
  • Protection: Thermal Magnetic
  • AIC rating: 100kA@480V
  • Phase: 3
  • Current Rating: 300 Amps
  • Mounting Type: Bolt-On
  • Standards: UL, IEC, RoHS
  • Temperature Rating: 40 °C