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Square D QOU150 - Molded Case Circuit Breaker 50A 1-Pole

Square D
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Square D QOU150 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, housed in a compact unit-mount frame measuring 102.87 mm H x 19.05 mm W x 74.93 mm D and weighing 0.36 lb. This thermal-magnetic breaker, compliant with CSA, IEC, and UL standards, utilizes a long-time and instantaneous (LI) trip function with a 10kA interrupting rating at 120V for robust protection. Its typical applications include air conditioning, refrigeration equipment, and heating panels, operating reliably within a temperature range of -25 to 70 °C and accommodating wire sizes from 14 AWG to 2 AWG via its slotted box lug terminals.

Key Features & Specifications
  • Type: Molded Case Circuit Breaker, Standard, Thermal-Magnetic Protection
  • Voltage Rating: 120/240V AC
  • Current Rating: 50A
  • Frame Size: 100A/QOU
  • Poles: 1
  • Phase: 1
  • AIC Rating: 10kA @ 120V
  • Trip Type/Functions: LI - Long-Time and Instantaneous Trip
  • Connection: Unit Mount
  • Terminal Connection: Slotted Box Lug (Reversible Line and Load)
  • Wire Size: 14 AWG to 2 AWG (Aluminium/Copper)
  • Temp Rating: -25°C to 70°C (-13°F to 158°F)
  • Dimensions: 102.87 mm H x 19.05 mm W x 74.93 mm D (4.05 in x 0.75 in x 2.95 in)
  • Weight: 0.36 lb
  • Standards/Certification: CSA, IEC, UL Listed
  • Panel Type/Applications: Air Conditioning and Refrigeration Equipment, Heating
  • Breaker Type: Standard
  • Protection: Thermal Magnetic


Product Identification
  • UPC: 785901418627
  • GTIN: 00785901418627