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Square D QGA32125 - Molded Case Circuit Breaker 125A 3P (65kA AIC)

Square D
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Square D QGA32125 is a molded case circuit breaker designed for providing reliable overcurrent protection in three-phase industrial power distribution systems. It features a 125A current rating and a 240V AC voltage rating, with a high interrupting capacity of 65kA to handle severe fault conditions. The breaker is constructed with a compact Q-frame size, measuring 164.34 mm H x 114.3 mm W x 99.82 mm D and weighing 6.68 lb, and utilizes a thermal-magnetic trip unit for combined long-time and instantaneous (LI) protection functions. It complies with UL, CSA, NEMA, and NOM-003-SCFI-2000 standards and is rated for operation in temperatures from -25°C to 70°C. Its I-Line style plug-in connection with lug terminals facilitates installation in panelboards for applications such as motor control centers, industrial machinery, and main feeder circuits.

Key Features & Specifications
  • Type: Molded Case Circuit Breaker, Thermal Magnetic Protection, I-Line Family
  • Voltage Rating: 240V AC
  • Current Rating: 125A
  • Dimensions: 6.47 in (164.34 mm) H x 4.5 in (114.3 mm) W x 3.93 in (99.82 mm) D
  • Standards: UL, CSA, NEMA, NOM-003-SCFI-2000
  • Applications: Industrial power distribution, motor control, main feeder protection
  • Switch Type: Circuit Breaker
  • Configuration: Plug-In
  • Phase: 3
  • AIC rating: 65kA @ 240V
  • Connection: I-Line Style Plug-In, Lug Terminal
  • Poles: 3
  • Protection: Thermal Magnetic
  • Functions: LI (Long-Time and Instantaneous)
  • Frame Size: Q
  • Temp Rating: -13–158 °F (-25–70 °C)
  • Certification: UL, CSA, NOM
  • Phase Connection: ABC
  • Weight: 6.68 lb


Product Identification
  • UPC: 785901705598
  • GTIN: 00785901705598