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Square D QOU250 - Molded Case Circuit Breaker 50A 2-Pole

Square D
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Square D QOU250 is a molded case circuit breaker designed for providing reliable overcurrent protection in single-phase electrical systems. It features a 50A current rating and a voltage rating of 120/240V AC, with a compact bolt-on design measuring 102.87 mm H x 38.1 mm W x 74.93 mm D and a weight of 0.8 lb. This thermal magnetic breaker is constructed with a 100A frame, offers a 10kA interrupting capacity at 240V, and operates within a temperature range of -25 to 70 °C. It complies with CSA, IEC, and UL standards, ensuring safe integration into panels for air conditioning, refrigeration, and heating equipment, utilizing slotted box lug terminals for reversible line/load connections with wire sizes from 14 to 2 AWG.

Key Features & Specifications
  • Type: Molded Case Circuit Breaker, Standard, Thermal Magnetic Protection
  • Voltage Rating: 120/240V AC
  • Current Rating: 50A
  • Dimensions: 102.87 mm H x 38.1 mm W x 74.93 mm D (4.05 in x 1.5 in x 2.95 in)
  • Standards: CSA, IEC, UL Listed
  • Applications: Air Conditioning, Refrigeration Equipment, Heating Panels
  • Switch Type: Circuit Breaker
  • Configuration: Bolt-On
  • Temp Rating: -25 to 70 °C (-13 to 158 °F)
  • Phase: 1
  • AIC Rating: 10kA @ 240V
  • Connection: Bolt-On
  • Poles: 2
  • Protection: Thermal Magnetic
  • Functions: Long-Time and Instantaneous (LI) Trip
  • Frame Size: 100A/QOU
  • Breaker Type: Standard
  • Wire Size: 14 to 2 AWG (Aluminium/Copper)
  • Certification: IEC, UL Listed
  • Terminal Connection: Slotted Box Lug (Reversible Line and Load)
  • Panel Type: Air Conditioning and Refrigeration Equipment, Heating
  • Weight: 0.8 lb


Product Identification
  • UPC: 785901418771
  • GTIN: 00785901418771