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Square D QO320EPD - 3-Pole GFCI Breaker 20A 120V

Square D
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Square D QO320EPD is a three-pole molded case circuit breaker designed to provide ground fault equipment protection and overcurrent protection for three-phase electrical systems. It features a 20A current rating and a 120V voltage rating, housed within a compact plug-in unit measuring 105 mm x 57 mm x 74 mm (HxWxD) and weighing 1.329 lb. The breaker utilizes a thermal-magnetic trip mechanism for long-time and instantaneous (LI) protection, is built on a 100A/QO frame, and is CSA and UL listed for compliance. It is engineered for installation in QO load centers and NQ panelboards, offering a 10kA interrupting capacity and accepting wire sizes from 14 to 8 AWG for copper or 12 to 8 AWG for aluminum via its pressure plate terminals.

Key Features & Specifications
  • Type: Three-pole, plug-in, molded case circuit breaker with ground fault equipment protection (30mA)
  • Voltage Rating: 120V
  • Current Rating: 20A
  • Dimensions: 4.1 in (105 mm) x 2.2 in (57 mm) x 2.9 in (74 mm) (Height x Width x Depth)
  • Standards: CSA, UL Listed
  • Applications: Three-phase overcurrent and ground fault protection in QO Load Centers and NQ Panelboards
  • Switch Type: Circuit Breaker
  • Configuration: Plug-In
  • Phase: 3
  • Amperage: 20A
  • AIC rating: 10kA@120V
  • Connection: Plug-In
  • Poles: 3
  • Protection: Thermal Magnetic
  • Functions: LI - Long-Time and Instantaneous
  • Frame Size: 100A/QO
  • Trip Type: Thermal Magnetic
  • Panel Type: QO Load Centers and NQ Panelboards
  • Breaker Type: Ground Fault Equipment Protection (30mA)
  • MCM Size: Min. Wire Size 12 AWG (Al), 14 AWG (Cu) Max. Wire Size 8 AWG
  • Terminal Connection: Pressure Plate
  • Wire Size: AWG 14 AWG 8 copper, AWG 12 AWG 8 aluminium
  • Weight: 1.329 lb


Product Identification
  • UPC: 785901605317
  • GTIN: 00785901605317