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Siemens HHLXD63B300 - Molded Case Breaker 300A 600V 3-Pole

Siemens
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Siemens HHLXD63B300 is a 3-pole thermal magnetic molded case circuit breaker from the Sentron Series, designed to provide reliable overcurrent protection through long-time and instantaneous trip functions. It is rated for 300A at 600VAC with an interrupting capacity of 100kA at 480V, operating on a 3-phase system. The unit features a bolt-on connection, weighs 25 lb, and is built on an LD Frame. It complies with UL and IEC certifications and is rated for operation at 40°C ambient temperature. This breaker is suited for industrial and commercial applications requiring robust circuit protection, though it does not include lugs.

Key Features & Specifications
  • Type: Molded Case
  • Family: Sentron Series
  • Functions: LI - Long-Time and Instantaneous
  • Frame Size: LD Frame
  • Voltage Rating: 600V
  • Current Rating: 300A
  • Poles: 3
  • Phase: 3
  • Connection: Bolt-On
  • Protection: Thermal Magnetic
  • AIC Rating: 100kA@480V
  • Weight: 25 lb
  • Certifications: UL, IEC
  • Temperature Rating: 40 °C