Square D QOB2451021 - 45A 2-Pole Molded Case Breaker (120/240VAC)
Square D QOB2451021 - 45A 2-Pole Molded Case Breaker (120/240VAC)

Square D QOB2451021 - 45A 2-Pole Molded Case Breaker (120/240VAC)

Square D
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Square D QOB2451021 is a 2-pole molded case circuit breaker from the QOB Series, designed to provide overcurrent protection through its thermal-magnetic trip mechanism. It is rated for 45A at 120/240VAC with a 10kA interrupting capacity at 120V, and features a bolt-on connection with pressure plate terminals accepting AWG 8 to AWG 2 copper or aluminum wire. The breaker measures 3.1 in (79 mm) x 2.2 in (57 mm) x 2.9 in (74 mm) and weighs 0.96 lb, with an operating temperature range of -13°F to 158°F (-25°C to 70°C). It is UL Listed and CSA certified, providing long time and instantaneous trip functions for single-phase applications. This breaker is suitable for use in industrial panelboards and load centers requiring reliable branch circuit protection.

Key Features & Specifications
  • Type: Molded Case Circuit Breaker, QOB Series, Thermal-Magnetic
  • Voltage Rating: 120/240VAC
  • Current Rating: 45A
  • Poles: 2
  • Connection: Bolt-On
  • AIC Rating: 10kA@120V
  • Phase: 1
  • Wire Size: AWG 8 to AWG 2, Copper/Aluminum
  • Terminal Connection: Pressure Plate
  • Functions: Long Time and Instantaneous Trip
  • Protection: Thermal Magnetic
  • Dimensions: 3.1 in (79 mm) x 2.2 in (57 mm) x 2.9 in (74 mm) (Height x Width x Depth)
  • Weight: 0.96 lb
  • Temp Rating: -13°F to 158°F (-25°C to 70°C)
  • Standards: CSA, UL Listed
  • Certification: UL Listed
  • Manufacturer: Schneider Electric
  • Family: QOB Series
  • Country of Origin: Mexico
  • Item Subcategory: Molded Case


Product Identification
  • UPC: 785901272151
  • GTIN: 00785901272151