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Square D QDA221751 - Molded Case Circuit Breaker 175A 240V 2-Pole

Square D
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Square D QDA221751 is a molded case circuit breaker designed for providing reliable overcurrent and short-circuit protection in industrial and commercial electrical systems. It features a 175A current rating and a 240V AC voltage rating, housed within a compact Q Frame measuring 164.34 mm H x 76.2 mm W x 99.82 mm D and weighing 4.72 lb. The breaker is constructed for robust performance, offering thermal-magnetic protection with long-time and instantaneous (LI) trip functions and a 25kA interrupting rating at 240V, and it complies with UL, CSA, NEMA, and NOM standards. Its I-Line style plug-in connection facilitates efficient installation in panelboards, making it suitable for a wide range of applications including feeder and branch circuit protection in single-phase systems operating within a temperature range of -25 to 70 °C.

Key Features & Specifications
  • Type: Molded Case Circuit Breaker, Thermal-Magnetic Protection, I-Line Plug-In Connection
  • Voltage Rating: 240V AC
  • Current Rating: 175A
  • Frame Size: Q Frame
  • Poles: 2
  • Phase: 1
  • AIC Rating: 25kA @ 240V
  • Functions: LI (Long-Time and Instantaneous Trip)
  • Connection: I-Line Style Plug-In
  • Dimensions: 6.47 in H (164.34 mm) x 3 in W (76.2 mm) x 3.93 in D (99.82 mm)
  • Weight: 4.72 lb
  • Temp Rating: -13 to 158 °F (-25 to 70 °C)
  • Standards & Certification: UL, CSA, NEMA, NOM-003-SCFI-2000
  • Protection: Thermal Magnetic
  • Family: I-Line


Product Identification
  • UPC: 785901420743
  • GTIN: 00785901420743