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Square D QDA221254 - 125A Circuit Breaker (240V, 25kA AIC)

Square D
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Square D QDA221254 is a molded case circuit breaker designed for providing reliable overcurrent and short-circuit protection in industrial and commercial electrical systems. It features a 125A current rating and a 240V AC voltage rating, housed within a compact 250A frame with dimensions of 164.34 mm H x 76.2 mm W x 99.82 mm D and a weight of 4.751 lb. The breaker is constructed with a thermal-magnetic trip unit for long-time and instantaneous (LI) protection, ensuring compliance with UL, CSA, NEMA, and NOM standards. Its plug-in connection and lug terminals facilitate integration into I-Line panelboards, making it suitable for a wide range of power distribution applications.

Key Features & Specifications
  • Type: Molded Case Circuit Breaker, Standard, Thermal Magnetic Protection with Long-Time and Instantaneous (LI) Trip
  • Voltage Rating: 240V AC
  • Current Rating: 125A
  • Frame Size: 250A/QD
  • AIC Rating: 25kA @ 240V
  • Poles: 2
  • Phase: 1
  • Phase Connection: BC
  • Connection: Plug-In Panelboard
  • Terminal Connection: Lug
  • MCM Wire Size Range: 4 AWG Minimum, 300 MCM Maximum
  • Dimensions: 164.34 mm H x 76.2 mm W x 99.82 mm D (6.47 in x 3 in x 3.93 in)
  • Weight: 4.751 lb
  • Operating Temperature: -25 to 70 °C (-13 to 158 °F)
  • Standards & Certification: UL, CSA, NEMA, NOM-003-SCFI-2000
  • Panel Type: I-Line Panelboards
  • Family: I-Line
  • Country of Origin: Mexico


Product Identification
  • UPC: 785901619109
  • GTIN: 00785901619109