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Square D QO150 - 1-Pole Standard Breaker 50A 120/240V

Square D
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Square D QO150 is a molded case circuit breaker designed for providing reliable overcurrent protection in residential and light commercial electrical systems. It features a 50A current rating and a 120/240V AC voltage rating, housed within a compact plug-in unit measuring 79 mm H x 19 mm W x 74 mm D and weighing 0.28 lb. The breaker utilizes a thermal-magnetic trip mechanism for both long-time and instantaneous protection, is CSA certified and UL listed, and is engineered for compatibility with QO load centers and NQ panelboards.

Key Features & Specifications
  • Type: Molded Case, Standard, Thermal Magnetic Protection
  • Voltage Rating: 120/240V AC
  • Current Rating: 50A
  • Frame Size: 100A/QO
  • AIC Rating: 10kA @ 240V
  • Poles: 1
  • Connection: Plug-In
  • Terminal Connection: Lug
  • Wire Size: 8 AWG to 2 AWG (Cu/Al)
  • Phase: 1
  • Dimensions: 3.1 in H (79 mm) x 0.7 in W (19 mm) x 2.9 in D (74 mm)
  • Weight: 0.28 lb
  • Temp Rating: -25°C to 70°C (-13°F to 158°F)
  • Standards: CSA Certified, HACR, UL Listed
  • Panel Type: QO Load Centers and NQ Panelboards
  • Functions: Long-Time and Instantaneous (LI) Trip


Product Identification
  • UPC: 785901400226
  • GTIN: 00785901400226