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Square D QO325 - 3-Pole Circuit Breaker 25A 240V

Square D
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Square D QO325 is a three-pole molded case circuit breaker designed for providing reliable overcurrent protection in three-phase electrical systems. It features a 25A current rating and a 240V AC voltage rating, with a compact plug-in design measuring 76 mm H x 57 mm W x 74 mm D and a weight of 0.81 lb. The breaker utilizes a thermal-magnetic trip mechanism for both long-time and instantaneous protection, is constructed with pressure plate terminals for AWG 14 to 8 wire, and operates within a temperature range of -25 to 70 °C. It complies with UL, CSA, and HACR standards, offering a 10kA interrupting rating at 240V for robust fault protection. This unit is typically applied in commercial and light industrial settings within compatible QO load centers and NQ panelboards.

Key Features & Specifications
  • Type: Three-pole, plug-in, thermal-magnetic molded case circuit breaker
  • Voltage Rating: 240V AC
  • Current Rating: 25A
  • Frame Size: 100A/QO
  • AIC Rating: 10kA @ 240V
  • Poles: 3
  • Phase: 3
  • Connection: Plug-In
  • Terminal Connection: Pressure plate
  • Wire Size: AWG 14 to AWG 8 (Copper or Aluminum)
  • Protection: Thermal Magnetic
  • Functions: Long Time and Instantaneous Trip
  • Breaker Type: Standard
  • Panel Type: QO Load Centers and NQ Panelboards
  • Dimensions: 3.0 in (76 mm) H x 2.2 in (57 mm) W x 2.9 in (74 mm) D
  • Weight: 0.81 lb
  • Temp Rating: -13–158 °F (-25–70 °C)
  • Standards: CSA Certified, HACR, UL Listed
  • Certification: HACR, UL Listed
  • Family: QO Series
  • Country of Origin: Mexico


Product Identification
  • UPC: 785901012467
  • GTIN: 00785901012467