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Square D QO3501021 - Molded Case 50A 3-Pole Shunt Trip

Square D
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Square D QO3501021 is a 3-pole molded case circuit breaker from the QO Series designed for overcurrent protection and shunt trip functionality in electrical distribution systems. It is rated for 50A at 240V AC with a 10kA interrupting capacity and features a thermal magnetic trip unit providing long-time and instantaneous protection. This plug-in breaker measures 3.1 in (79 mm) x 3.0 in (76 mm) x 2.9 in (74 mm) and weighs 1.17 lb, with a lug terminal connection supporting wire sizes from 8 AWG to 2 AWG. It is UL Listed and CSA Certified for use in QO Load Centers and NQ Panelboards. Typical applications include industrial and commercial power distribution requiring shunt trip control.

Key Features & Specifications
  • Manufacturer: Schneider Electric
  • Family: QO Series
  • Type: QO
  • Item Subcategory: Molded Case
  • Breaker Type: Shunt Trip
  • Poles: 3
  • Phase: 3
  • Current Rating: 50A
  • Voltage Rating: 240V
  • AIC rating: 10kA@240V
  • Protection: Thermal Magnetic
  • Functions: LI - Long-Time and Instantaneous
  • Frame Size: 100A/QO
  • Connection: Plug-In
  • Terminal Connection: Lug
  • MCM Size: Min. Wire Size 8 AWG Max. Wire Size 2 AWG
  • Panel Type: QO Load Centers and NQ Panelboards
  • Standards: CSA Certified, UL Listed
  • Certification: UL Listed
  • Country of Origin: Mexico
  • Dimensions: 3.1 in (79 mm) x 3.0 in (76 mm) x 2.9 in (74 mm) (Height x Width x Depth)
  • Weight: 1.17 lb


Product Identification
  • UPC: 785901494157
  • GTIN: 00785901494157