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Square D QO2151021 - Shunt Trip Breaker 15A 2-Pole (10kA AIC)

Square D
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Square D QO2151021 is a molded case circuit breaker designed for providing reliable overcurrent and short-circuit protection in residential and light commercial electrical systems. It operates at a 15A current rating with a 120/240V AC voltage rating and features a compact plug-in design measuring 3.0 in (76 mm) H x 2.2 in (57 mm) W x 2.9 in (74 mm) D. This thermal-magnetic shunt trip breaker is CSA Certified and UL Listed, ensuring compliance with industry safety standards for use in QO load centers and NQ panelboards.

Key Features & Specifications
  • Type: Molded case, thermal-magnetic protection with long time and instantaneous trip functions, shunt trip breaker
  • Voltage Rating: 120/240V AC
  • Current Rating: 15A
  • Dimensions: 3.0 in (76 mm) H x 2.2 in (57 mm) W x 2.9 in (74 mm) D
  • Weight: 0.93 lb
  • Standards: CSA Certified, UL Listed
  • Applications: Residential and light commercial electrical protection
  • Phase: 1
  • Poles: 2
  • AIC Rating: 10kA @ 240V
  • Connection: Plug-in
  • Terminal Connection: Pressure plate
  • Wire Size: 14 AWG to 8 AWG (Copper/Aluminum)
  • Frame Size: 100A/QO
  • Panel Type: QO Load Centers and NQ Panelboards
  • Breaker Type: Shunt Trip
  • Temp Rating: -25 to 70 °C (-13 to 158 °F)
  • Protection: Thermal Magnetic
  • Certification: UL Listed
  • MCM Size: Min. 12 AWG (Al) / 14 AWG (Cu), Max. 8 AWG


Product Identification
  • UPC: 785901493921
  • GTIN: 00785901493921