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Square D LHF36300 - Molded Case Circuit Breaker 300A 600V 3P

Square D
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Square D LHF36300 is a molded case circuit breaker designed for providing reliable overcurrent protection in three-phase industrial power distribution systems. It features a 600V AC voltage rating and a 300A continuous current rating, housed within a compact L Frame measuring 101.60 mm in depth, 152.40 mm in width, and 317.50 mm in height with a weight of 20 lb. The breaker utilizes a thermal-magnetic trip unit with Long-Time and Instantaneous (LI) protection functions and offers a 35kA interrupting capacity at 480V AC, ensuring compliance with industry protection standards for demanding commercial and industrial applications.

Key Features & Specifications
  • Type: Molded Case Circuit Breaker, LHF Series, Thermal-Magnetic Protection
  • Voltage Rating: 600V AC
  • Current Rating: 300A
  • Dimensions: 101.60 mm D x 152.40 mm W x 317.50 mm H (4 in x 6 in x 12.5 in)
  • Standards: Designed to meet applicable industry standards for circuit protection
  • Applications: Industrial power distribution, panelboards, and switchgear
  • Switch Type: Circuit Breaker
  • Configuration: Fixed
  • Phase: 3
  • Amperage: 300A
  • AIC Rating: 35kA @ 480V AC
  • Connection: Bolt-On
  • Poles: 3
  • Protection: Thermal-Magnetic
  • Functions: Long-Time and Instantaneous (LI)
  • Frame Size: L Frame
  • Trip Type: Thermal-Magnetic
  • Mounting: Designed for panel mounting
  • Weight: 20 lb


Product Identification
  • Manufacturer Part Number: LHF36300