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Square D QOB320EPD - 3-Pole GFCI Breaker 20A 120/240VAC

Square D
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Square D QOB320EPD is a three-pole molded case circuit breaker designed for providing ground fault protection and overcurrent interruption in three-phase electrical systems. It features a 20A current rating and a 120/240VAC voltage rating, housed within a compact 100A/QO frame with dimensions of 105 mm H x 57 mm W x 74 mm D and a weight of 1.313 lb. The breaker utilizes a thermal-magnetic trip mechanism for long-time and instantaneous (LI) protection and is constructed with bolt-on connections and pressure plate terminals compatible with wire sizes from 14-8 AWG copper or 12-4 AWG aluminum. It is certified to UL and CSA standards for safety and is rated for operation in temperatures from -25°C to 70°C, making it suitable for installation in QO load centers and NQ panelboards within commercial and industrial facilities.

Key Features & Specifications
  • Type: Three-Pole, Molded Case, Ground Fault Circuit Interrupter (Class A - 5mA)
  • Voltage Rating: 120/240V AC
  • Current Rating: 20A
  • Frame Size: 100A/QO
  • AIC Rating: 10kA @ 120V
  • Protection: Thermal Magnetic
  • Functions: Long-Time and Instantaneous (LI)
  • Poles: 3
  • Phase: 3
  • Connection: Bolt-On
  • Terminal Connection: Pressure Plate
  • Panel Type: QO Load Centers and NQ Panelboards
  • Wire Size: 14-8 AWG Copper, 12-4 AWG Aluminum
  • Temp Rating: -25°C to 70°C
  • Standards: CSA, UL Listed
  • Dimensions: 105 mm H x 57 mm W x 74 mm D (4.1 in x 2.2 in x 2.9 in)
  • Weight: 1.313 lb


Product Identification
  • UPC: 785901982678
  • GTIN: 00785901652359