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Square D QOB3201021 - 3-Pole Molded Case Breaker (20A, 10kA AIC)

Square D
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Square D QOB3201021 is a molded case circuit breaker designed for providing reliable overcurrent and short-circuit protection in three-phase electrical systems. It features a 20A current rating and a voltage rating of 120/240VAC, with a compact bolt-on design measuring 76 mm H x 76 mm W x 74 mm D and a weight of 1.16 lb. The breaker utilizes a thermal-magnetic trip mechanism for both long-time and instantaneous protection, is CSA and UL Listed, and is engineered for operation in temperatures from -25°C to 70°C. Its 10kA AIC rating at 240V and compatibility with Square D NQOD panelboards make it suitable for a range of commercial and light industrial applications.

Key Features & Specifications
  • Type: Molded Case Circuit Breaker, Shunt Trip, Thermal-Magnetic Protection
  • Voltage Rating: 120/240VAC
  • Current Rating: 20A
  • Frame Size: 100A/QO
  • Poles: 3
  • AIC Rating: 10kA @ 240V
  • Connection: Bolt-On, Pressure Plate Terminal
  • Wire Size: 14 AWG to 8 AWG (Copper or Aluminum)
  • Dimensions: 3.0 in (76 mm) H x 3.0 in (76 mm) W x 2.9 in (74 mm) D
  • Weight: 1.16 lb
  • Standards: CSA, UL Listed
  • Temp Rating: -25°C to 70°C (-13°F to 158°F)
  • Phase: 3
  • Panel Type: Square D NQOD Panelboards
  • Functions: Long Time and Instantaneous Trip
  • Certification: UL Listed


Product Identification
  • UPC: 785901875925
  • GTIN: 00785901875925