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Square D QOB120AFI - AFCI Breaker 20A 1-Pole (10kA AIC)

Square D
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Square D QOB120AFI is a molded case circuit breaker designed for providing both overcurrent and arc fault protection in residential and light commercial electrical systems. It operates at 120/240V AC with a 20A current rating and features a compact bolt-on design measuring 121 mm H x 19 mm W x 74 mm D, constructed with thermal-magnetic trip functions for reliable long-time and instantaneous protection. This single-pole Arc Fault Circuit Interrupter (AFCI) is CSA and UL listed, ensuring compliance with industry safety standards for installation in Square D NQOD panelboards. Its 10kA interrupting rating at 120V and pressure plate terminals accommodating #8 to #14 AWG copper or #8 to #12 AWG aluminum wire make it suitable for branch circuit applications requiring enhanced fire prevention.

Key Features & Specifications
  • Type: Molded Case, Arc Fault Circuit Interrupter (AFCI) with Thermal-Magnetic Protection
  • Voltage Rating: 120/240V AC
  • Current Rating: 20A
  • Dimensions: 4.8 in (121 mm) H x 0.7 in (19 mm) W x 2.9 in (74 mm) D
  • Weight: 0.563 lb
  • Standards: CSA, UL Listed
  • Applications: Branch circuit protection in Square D NQOD Panelboards
  • Switch Type: Circuit Breaker
  • Configuration: Bolt-On
  • Temp Rating: -25°C to 70°C (-13°F to 158°F)
  • Phase: 1
  • Amperage: 20A
  • AIC Rating: 10kA @ 120V
  • Connection: Bolt-On
  • Poles: 1
  • Protection: Thermal Magnetic
  • Functions: Long Time and Instantaneous Trip
  • Frame Size: 100A/QO
  • Panel Type: Square D NQOD Panelboards
  • Breaker Type: Arc Fault Circuit Interrupter
  • MCM Size: Min. Wire Size 12 AWG (Al), 14 AWG (Cu); Max. Wire Size 8 AWG
  • Terminal Connection: Pressure Plate
  • Wire Size: AWG 14 to AWG 8 Copper, AWG 12 to AWG 8 Aluminum
  • Certification: UL Listed
  • Family: QOB Series
  • Country of Origin: Mexico


Product Identification
  • UPC: 785901299356
  • GTIN: 00785901299356