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Square D Q4F3300 - Molded Case 300A 3-Pole 240V

Square D
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Square D Q4F3300 is a 3-pole, 300A molded case circuit breaker from the Q4L Series, designed to provide LI (Long-Time and Instantaneous) protection for electrical systems. It operates at 240V with a 25kA interrupting capacity and features a thermal magnetic trip mechanism for reliable overcurrent protection. The unit weighs 14 lb and is configured for bolt-on connection, with a temperature rating of -13°F to 158°F (-25°C to 70°C). This breaker complies with industry standards for industrial power distribution and is suitable for 3-phase applications requiring robust circuit protection.

Key Features & Specifications
  • Type: Molded Case Circuit Breaker, Q4F, Thermal Magnetic
  • Voltage Rating: 240V AC
  • Current Rating: 300A
  • Poles: 3
  • Phase: 3
  • AIC Rating: 25kA@240V
  • Connection: Bolt-On
  • Functions: LI - Long-Time and Instantaneous
  • Temp Rating: -13°F to 158°F (-25°C to 70°C)
  • Weight: 14 lb
  • Family: Q4L Series
  • Item Subcategory: Molded Case


Product Identification
  • UPC: 785901772385