Square D QOB3451021 - 45A 3-Pole Molded Case Breaker
Square D QOB3451021 - 45A 3-Pole Molded Case Breaker

Square D QOB3451021 - 45A 3-Pole Molded Case Breaker

Square D
Price
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The Square D QOB3451021 is a 45A, three-pole molded case circuit breaker from the QOB family, designed to provide thermal-magnetic overcurrent protection for branch circuits. It operates at 120/240VAC with a 10kA interrupting capacity at 240V, utilizing a bolt-on connection and pressure plate terminals that accept AWG 8 to AWG 2 copper or aluminum wire. This compact unit measures 3.1 in (79 mm) x 3.0 in (76 mm) x 2.9 in (74 mm) and weighs 1.21 lb, featuring long-time and instantaneous trip functions for reliable fault clearing. The breaker is UL Listed and CSA certified, suitable for three-phase industrial applications within an operating temperature range of -13°F to 158°F (-25°C to 70°C).

Key Features & Specifications
  • Type: QOB Molded Case Circuit Breaker
  • Voltage Rating: 120/240VAC
  • Current Rating: 45A
  • Poles: 3
  • Connection: Bolt-On
  • Protection: Thermal Magnetic
  • AIC rating: 10kA@240V
  • Wire Size: AWG 8 to AWG 2, Copper/Aluminum
  • Terminal Connection: Pressure Plate
  • Functions: Long-Time and Instantaneous Trip
  • Phase: 3
  • Temp Rating: -13°F to 158°F (-25°C to 70°C)
  • Dimensions: 3.1 in (79 mm) x 3.0 in (76 mm) x 2.9 in (74 mm) (Height x Width x Depth)
  • Weight: 1.21 lb
  • Standards: CSA, UL Listed
  • Certification: UL Listed
  • Manufacturer: Schneider Electric
  • Family: QOB Series
  • Country of Origin: Mexico


Product Identification
  • UPC: 785901727279
  • GTIN: 00785901727279