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Square D QBA221751 - Molded Case Circuit Breaker 175A 2-Pole

Square D
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Square D QBA221751 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 voltage rating for single-phase applications, housed within a compact Q Frame measuring 164.34 mm H x 76.2 mm W x 99.82 mm D and weighing 4.707 lb. The breaker utilizes a thermal magnetic protection mechanism with LI (Long-time and Instantaneous) trip functions and is constructed for plug-in connection to I-Line panelboards. It complies with UL, CSA, NEMA, and NOM-003-SCFI-2000 standards, ensuring suitability for a wide range of installations including motor control centers, distribution panels, and other power distribution equipment.

Key Features & Specifications
  • Type: Molded Case Circuit Breaker, Thermal Magnetic Protection, I-Line Style Plug-In Connection
  • Voltage Rating: 240V AC
  • Current Rating: 175A
  • Dimensions: 6.47 in (164.34 mm) H x 3 in (76.2 mm) W x 3.93 in (99.82 mm) D
  • Standards: UL, CSA, NEMA, NOM-003-SCFI-2000
  • Applications: Industrial and Commercial Power Distribution, Motor Control Centers, Panelboards
  • Switch Type: Circuit Breaker
  • Configuration: Plug-In
  • Temp Rating: -13 to 158 °F (-25 to 70 °C)
  • Phase: 1
  • AIC Rating: 10kA @ 240V
  • Connection: Plug-In
  • Poles: 2
  • Protection: Thermal Magnetic
  • Functions: LI - Long-Time and Instantaneous Trip
  • Frame Size: Q Frame
  • Certification: UL, CSA, NOM
  • Family: I-Line
  • Country of Origin: Mexico
  • Weight: 4.707 lb


Product Identification
  • UPC: 785901446330
  • GTIN: 00785901446330