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Square D QDA221001 - Molded Case Circuit Breaker 100A 240V

Square D
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The Square D QDA221001 is a molded case circuit breaker designed to provide reliable overcurrent protection for industrial and commercial electrical systems. It features a 100A current rating and a 240V voltage rating, housed within a compact 250A/QD frame measuring 164.34 mm x 76.2 mm x 99.82 mm (H x W x D) and weighing 4.652 lb. This thermal magnetic breaker is constructed for plug-in connection to I-Line panelboards and complies with UL, CSA, NEMA, and NOM standards, ensuring safe operation in environments from -25 to 70 °C. Its 25kA interrupting capacity at 240V and long-time/instantaneous (LI) trip functions make it suitable for protecting feeders and branch circuits in single-phase applications.

Key Features & Specifications
  • Type: Molded Case Circuit Breaker, Standard, Thermal Magnetic Protection with LI (Long-Time and Instantaneous) Trip
  • Voltage Rating: 240V AC
  • Current Rating: 100A
  • Frame Size: 250A/QD
  • Poles: 2
  • AIC Rating: 25kA @ 240V
  • Phase: 1
  • Connection: Plug-In Panelboard
  • Terminal Connection: Lug (Accepts 4 AWG to 300 MCM Wire)
  • 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: 4.652 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
  • Phase Connection: AB


Product Identification
  • UPC: 785901689874
  • GTIN: 00785901689874