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Square D QOB120 - Molded Case Circuit Breaker 20A 1-Pole

Square D
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Square D QOB120 is a molded case circuit breaker designed for providing reliable overcurrent protection in commercial and industrial electrical systems. It features a 20A current rating and a 120/240VAC voltage rating, housed within a compact 3.0 in (76 mm) H x 0.7 in (19 mm) W x 2.9 in (74 mm) D bolt-on unit constructed for durability. This thermal-magnetic breaker complies with CSA and UL standards, ensuring safe operation across a temperature range of -25°C to 70°C. It is typically applied in Square D NQOD panelboards for branch circuit protection, offering a 10kA interrupting capacity at 120V.

Key Features & Specifications
  • Type: Molded Case, Thermal Magnetic Protection, Standard Breaker
  • Voltage Rating: 120/240VAC
  • Current Rating: 20A
  • Dimensions: 3.0 in H x 0.7 in W x 2.9 in D (76 mm x 19 mm x 74 mm)
  • Weight: 0.28 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
  • Phase: 1
  • AIC Rating: 10kA @ 120V
  • Connection: Bolt-On
  • Poles: 1
  • Protection: Thermal Magnetic
  • Functions: Long-Time and Instantaneous (LI)
  • Frame Size: 100A/QO
  • Panel Type: Square D NQOD Panelboards
  • Breaker Type: Standard
  • MCM Size: Min. Wire Size 14 AWG, Max. Wire Size 8 AWG
  • Terminal Connection: Pressure Plate
  • Wire Size: AWG 14 to AWG 8 Copper or Aluminum
  • Certification: UL Listed
  • Family: QOB Series
  • Country of Origin: United States


Product Identification
  • UPC: 785901416722
  • GTIN: 00785901416722