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Square D QO330EPD - Molded Case Circuit Breaker 30A 3-Pole

Square D
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Square D QO330EPD is a 3-pole molded case circuit breaker from the QOB Series designed for equipment ground fault protection in commercial and industrial applications. It is rated for 30A at 120V with a 10kA interrupting capacity at 120V and features LI (Long-Time and Instantaneous) trip functions along with thermal magnetic protection. The unit measures 4.1 in (105 mm) x 2.2 in (57 mm) x 2.9 in (74 mm) (Height x Width x Depth), weighs 1.33 lb, and uses a plug-in connection with box lugs for wire sizes AWG 14 to AWG 8 (copper/aluminum). It complies with UL standards and operates within a temperature range of -13 to 158 °F (-25 to 70 °C). This breaker is suitable for use in QO load centers for equipment protection applications.

Key Features & Specifications
  • Type: QOB
  • Family: QOB Series
  • Item Subcategory: Molded Case
  • Functions: LI - Long-Time and Instantaneous Trip
  • Protection: Thermal Magnetic
  • Current Rating: 30A
  • Voltage Rating: 120V
  • Poles: 3
  • Phase: 3
  • AIC Rating: 10kA@120V
  • Connection: Plug-In
  • Wire Size: AWG 14 to AWG 8, AWG 12 to AWG 8, Copper/Aluminum
  • Dimensions: 4.1 in (105 mm) x 2.2 in (57 mm) x 2.9 in (74 mm) (Height x Width x Depth)
  • Weight: 1.33 lb
  • Temp Rating: -13–158 °F (-25–70 °C)
  • Application: Equipment Protection
  • Electrical Connection: Box Lugs
  • Certifications: UL Listed


Product Identification
  • UPC: 785901982739
  • GTIN: 00785901982739