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Square D QO350SWN - Molded Case Breaker 50A 240V 2-Pole

Square D
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Square D QO350SWN is a molded case circuit breaker designed for providing reliable overcurrent and short-circuit protection in residential and light commercial electrical systems. It features a 50A current rating and a 240V AC voltage rating, housed within a compact plug-in unit measuring 79 mm x 57 mm x 74 mm (H x W x D) and weighing 0.93 lb. The breaker utilizes a thermal-magnetic trip mechanism for both long-time and instantaneous protection, is rated for 10kA interrupting capacity at 240V, and operates within a temperature range of -25 to 70 °C. It is engineered for compatibility with copper or aluminum conductors from AWG 8 to AWG 2 and is a standard component for panelboards within the QO Series.

Key Features & Specifications
  • Type: Molded Case Circuit Breaker, Thermal-Magnetic Protection, Plug-In Connection
  • Voltage Rating: 240V AC
  • Current Rating: 50A
  • Dimensions: 3.1 in (79 mm) H x 2.2 in (57 mm) W x 2.9 in (74 mm) D
  • Standards: Designed for compliance with applicable industry standards for circuit protection
  • Applications: Residential and light commercial electrical distribution panels
  • Switch Type: Integrated Trip Mechanism
  • Configuration: Plug-In
  • Temp Rating: -25 to 70 °C (-13 to 158 °F)
  • Phase: 1
  • AIC Rating: 10kA @ 240V
  • Connection: Plug-In
  • Poles: 2
  • Protection: Thermal-Magnetic
  • Functions: Long Time and Instantaneous Trip
  • Wire Size: AWG 8 to AWG 2, Copper or Aluminum
  • Weight: 0.93 lb


Product Identification
  • UPC: 785901088400
  • GTIN: 00785901088363