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Square D QO330 - 3-Pole Circuit Breaker 30A 240V

Square D
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Square D QO330 is a molded case circuit breaker designed for providing reliable overcurrent protection in three-phase electrical systems. It features a 30A current rating and a 240V AC voltage rating, housed within a compact 76mm x 57mm x 74mm (HxWxD) plug-in unit that weighs 0.9 lb. The breaker utilizes a thermal-magnetic trip mechanism for both long-time and instantaneous protection, is certified to UL and CSA standards including HACR, and operates effectively within a temperature range of -25°C to 70°C. Its 10kA interrupting rating at 240V and compatibility with QO load centers and NQ panelboards make it suitable for a variety of commercial and light industrial applications.

Key Features & Specifications
  • Type: Standard, Thermal-Magnetic, Molded Case Circuit Breaker
  • Voltage Rating: 240V AC
  • Current Rating: 30A
  • Dimensions: 3.0 in (76 mm) H x 2.2 in (57 mm) W x 2.9 in (74 mm) D
  • Standards: UL Listed, CSA Certified, HACR
  • Applications: Commercial and Light Industrial Panelboards
  • Switch Type: Circuit Breaker
  • Configuration: Plug-In
  • Temp Rating: -25°C to 70°C (-13°F to 158°F)
  • Phase: 3
  • AIC Rating: 10kA @ 240V
  • Connection: Plug-In, Pressure Plate Terminal
  • Poles: 3
  • Protection: Thermal-Magnetic
  • Functions: Long Time and Instantaneous Trip
  • Frame Size: 100A/QO
  • Trip Type: Thermal-Magnetic
  • Panel Type: QO Load Centers and NQ Panelboards
  • Breaker Type: Standard
  • Wire Size: AWG 14 to AWG 8 (Copper or Aluminum)
  • Certification: HACR, UL Listed
  • Family: QO Series
  • Country of Origin: Mexico


Product Identification
  • UPC: 785901400721
  • GTIN: 00785901400721