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Square D QO250SWN - 2-Pole 50A Circuit Breaker (10kA AIC, 120V)

Square D
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Square D QO250SWN is a molded case circuit breaker designed for providing reliable overcurrent protection in single-phase 120V AC electrical systems. It features a 50A current rating and a 10kA interrupting capacity at 120V, utilizing a thermal-magnetic trip mechanism for both long-time and instantaneous protection against overloads and short circuits. The compact plug-in unit measures 3.1 in (79 mm) H x 1.5 in (38 mm) W x 2.9 in (74 mm) D, weighs 0.713 lb, and operates within a temperature range of -25 to 70 °C (-13 to 158 °F). This two-pole breaker is engineered for compatibility with copper or aluminum conductors from AWG 8 to AWG 2 and is a standard component within the QO Series for residential and light commercial panelboards.

Key Features & Specifications
  • Type: Molded Case Circuit Breaker, Thermal-Magnetic Protection, QO-SW
  • Voltage Rating: 120V AC
  • Current Rating: 50A
  • Dimensions: 3.1 in H x 1.5 in W x 2.9 in D (79 mm x 38 mm x 74 mm)
  • Weight: 0.713 lb
  • Standards: Designed for UL and NEC compliance
  • Applications: Residential and light commercial electrical distribution
  • Switch Type: Integrated trip mechanism
  • Configuration: Plug-In
  • Temp Rating: -25 to 70 °C (-13 to 158 °F)
  • Phase: 1
  • AIC Rating: 10kA @ 120V
  • Connection: Plug-In
  • Poles: 2
  • Protection: Thermal Magnetic
  • Functions: Long-Time and Instantaneous (LI) Trip
  • Wire Size: AWG 8 to AWG 2, Copper/Aluminum


Product Identification
  • UPC: 785901544364
  • GTIN: 00785901544364