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Square D Q1B330 - Molded Case 30A 3-Pole 240V Breaker

Square D
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Square D Q1B330 is a three-pole molded case circuit breaker from the Q1B Series designed for overcurrent protection in electrical distribution systems. It is rated for 30A at 240V AC with a 10kA interrupting capacity and utilizes a thermal magnetic trip unit providing long-time and instantaneous (LI) protection functions. The unit weighs 2 lb and features a bolt-on connection for secure panel mounting in three-phase applications. This breaker complies with industry standards for molded case circuit breakers used in commercial and industrial power systems. It is suitable for protecting branch circuits and equipment in industrial and commercial electrical distribution applications.

Key Features & Specifications
  • Type: Q1B
  • Item Subcategory: Molded Case
  • Family: Q1B Series
  • Functions: LI - Long-Time and Instantaneous
  • Voltage Rating: 240V
  • Current Rating: 30A
  • Poles: 3
  • Phase: 3
  • Connection: Bolt-On
  • Protection: Thermal Magnetic
  • AIC rating: 10kA@240V
  • Weight: 2 lb