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Square D LHF26300V - Circuit Breaker 300A 2-Pole 600V

Square D
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Square D LHF26300V is a 300A 2-pole molded case circuit breaker from the LHF Series, designed for thermal magnetic protection with long-time and instantaneous (LI) trip functions in commercial and industrial power distribution systems. This bolt-on unit operates at a 600V voltage rating with a 35kA interrupting capacity at 480V, housed in an L Frame construction weighing 18 lb. The breaker features a push-to-trip manual trip capability for safe operation without exposure to live parts, and it is UL listed for reliability in demanding electrical environments. It is typically applied in panelboards and distribution systems requiring secure bolt-on mounting and robust overload and short circuit protection.

Key Features & Specifications
  • Type: LHF
  • Family: LHF Series
  • Item Subcategory: Molded Case
  • Functions: LI - Long-Time and Instantaneous
  • Frame Size: L Frame
  • Current Rating: 300A
  • Poles: 2
  • Voltage Rating: 600V
  • Connection: Bolt-On
  • Protection: Thermal Magnetic
  • AIC Rating: 35kA@480V
  • Phase: 1
  • Weight: 18 lb
  • Manual Trip Capability
  • Push-to-Trip Feature
  • UL Listed
  • Designed for Commercial and Industrial Use
  • Compatible with Standard Panelboards