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Square D QO3201021 - 3-Pole Circuit Breaker 20A 240V (10kA AIC)

Square D
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Square D QO3201021 is a molded case circuit breaker designed for providing reliable overcurrent protection in three-phase electrical systems. It features a 20A current rating and a 240V AC voltage rating, housed within a compact 76 mm x 76 mm x 74 mm (HxWxD) plug-in unit weighing 1.19 lb. This thermal-magnetic shunt trip breaker is CSA Certified and UL Listed, with a 10kA interrupting rating at 240V, ensuring compliance with industry safety standards for use in QO load centers and NQ panelboards across commercial and industrial applications.

Key Features & Specifications
  • Type: Molded Case, Thermal-Magnetic Protection with Long Time and Instantaneous Trip, Shunt Trip Function
  • Voltage Rating: 240V AC
  • Current Rating: 20A
  • Dimensions: 3.0 in (76 mm) x 3.0 in (76 mm) x 2.9 in (74 mm) (Height x Width x Depth)
  • Standards: CSA Certified, UL Listed
  • Applications: Commercial and Industrial Electrical Distribution
  • Switch Type: Circuit Breaker
  • Configuration: Plug-In
  • Temp Rating: -25 to 70 °C (-13 to 158 °F)
  • Phase: 3
  • Amperage: 20A
  • AIC rating: 10kA@240V
  • Connection: Plug-In
  • Poles: 3
  • Protection: Thermal Magnetic
  • Functions: Long Time and Instantaneous Trip
  • Frame Size: 100A/QO
  • Panel Type: QO Load Centers and NQ Panelboards
  • Breaker Type: Shunt Trip
  • 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/Aluminum
  • Certification: UL Listed


Product Identification
  • UPC: 785901494096
  • GTIN: 00785901494096