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Square D QO2110 - 2-Pole 110A Circuit Breaker (10kA AIC)

Square D
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Square D QO2110 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 110A current rating and a 120/240V AC voltage rating, housed within a compact plug-in unit measuring 89 mm H x 38 mm W x 74 mm D and weighing 0.71 lb. This thermal-magnetic breaker is constructed for a wide operating temperature range of -25 to 70 °C and complies with key industry standards including UL Listing and CSA certification. It is typically applied in QO load centers and NQ panelboards for safeguarding branch circuits, utilizing lug terminals that accommodate copper or aluminum conductors from AWG 4 up to 300 MCM.

Key Features & Specifications
  • Type: Molded Case, Thermal-Magnetic Protection, Standard Breaker
  • Voltage Rating: 120/240V AC
  • Current Rating: 110A
  • Dimensions: 3.5 in (89 mm) H x 1.5 in (38 mm) W x 2.9 in (74 mm) D
  • Weight: 0.71 lb
  • Standards: UL Listed, CSA Certified, HACR
  • Applications: QO Load Centers, NQ Panelboards
  • Connection: Plug-In, Lug Terminal
  • Poles: 2
  • Phase: 1
  • AIC Rating: 10kA @ 240V
  • Frame Size: 100A/QO
  • Wire Size: AWG 4 to AWG 2/0, 1/0 AWG to 300 MCM
  • Temp Rating: -13 to 158 °F (-25 to 70 °C)
  • Functions: Long-Time and Instantaneous (LI) Trip
  • Protection: Thermal Magnetic
  • Breaker Type: Standard
  • Panel Type: QO Load Centers and NQ Panelboards


Product Identification
  • UPC: 785901031086
  • GTIN: 00785901031086