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Square D QJA221751 - Molded Case Breaker 175A 240V 2-Pole

Square D
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Square D QJA221751 is a 2-pole thermal magnetic molded case circuit breaker from the I-Line family, designed to provide overcurrent protection through long time and instantaneous trip functions. It is rated for 175A at 240V with a 100kA interrupting capacity at 240V, operating on a single-phase system. The unit measures 6.47 in (164.34 mm) in height, 3 in (76.2 mm) in width, and 3.93 in (99.82 mm) in depth, weighing 5 lb, and features an I-Line style plug-in connection for secure mounting. It complies with UL, CSA, NEMA, and NOM-003-SCFI-2000 standards, with certifications from UL, CSA, and NOM. This breaker is suitable for commercial and industrial applications requiring reliable circuit protection in environments with a temperature range of -13 to 158 °F (-25 to 70 °C).

Key Features & Specifications
  • Manufacturer: Schneider Electric
  • Item Subcategory: Molded Case
  • Family: I-Line
  • Country of Origin: Mexico
  • Type: QJA
  • Dimensions: 6.47 in (164.34 mm) x 3 in (76.2 mm) x 3.93 in (99.82 mm) (Height x Width x Depth)
  • Weight: 5 lb
  • Functions: Long Time and Instantaneous Trip
  • Voltage Rating: 240V
  • Poles: 2
  • Connection: I-Line Style Plug-In
  • Standards: UL, CSA, NEMA, NOM-003-SCFI-2000
  • Protection: Thermal Magnetic
  • Certification: UL, CSA, NOM
  • AIC rating: 100kA@240V
  • Phase: 1
  • Temp Rating: -13–158 °F (-25–70 °C)
  • Current Rating: 175A


Product Identification
  • UPC: 785901543510