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Square D QOB320SWN - 3-Pole Circuit Breaker, 20A 120/240VAC

Square D
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Square D QOB320SWN 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 120/240VAC voltage rating, housed within a compact, bolt-on design measuring 3.0 in (76 mm) H x 2.2 in (57 mm) W x 2.9 in (74 mm) D and weighing 0.91 lb. The breaker is CSA and UL Listed, employing a thermal-magnetic trip mechanism with long-time and instantaneous (LI) functions for consistent performance. It is engineered for installation in Square D NQOD panelboards, offering a 10kA interrupting capacity at 240V and a switched neutral for enhanced safety in applicable configurations.

Key Features & Specifications
  • Type: Molded Case, Switched Neutral, Thermal-Magnetic Protection, Bolt-On Connection
  • Voltage Rating: 120/240VAC
  • Current Rating: 20A
  • Frame Size: 100A/QO
  • Poles: 3
  • AIC Rating: 10kA @ 240V
  • Functions: LI (Long Time and Instantaneous Trip)
  • Connection: Bolt-On, Pressure Plate Terminal
  • Wire Size: 14 AWG to 8 AWG (Copper or Aluminum)
  • Dimensions: 3.0 in (76 mm) H x 2.2 in (57 mm) W x 2.9 in (74 mm) D
  • Weight: 0.91 lb
  • Temp Rating: -25°C to 70°C (-13°F to 158°F)
  • Standards: CSA, UL Listed
  • Panel Type: Square D NQOD Panelboards
  • Phase: 3


Product Identification
  • UPC: 785901341901
  • GTIN: 00785901341901