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Square D QO240GFI - GFCI Breaker 40A 2-Pole (10kA AIC)

Square D
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Square D QO240GFI is a two-pole ground fault circuit interrupter (GFCI) molded case circuit breaker designed to provide personnel protection and equipment protection in 120/240V AC single-phase systems. It features a 40A current rating and a 10kA interrupting rating at 120V, with a compact plug-in design measuring 105 mm H x 38 mm W x 74 mm D and a thermal-magnetic trip unit providing long-time and instantaneous overcurrent protection. The breaker is constructed for operation in temperatures from -25°C to 70°C, utilizes lug terminals, and is compliant with UL and CSA standards for installation in QO load centers and NQ panelboards. Its Class A GFCI protection trips at a 5mA ground fault current, making it suitable for applications requiring enhanced safety in residential, commercial, and light industrial branch circuits.

Key Features & Specifications
  • Type: Two-pole, plug-in, molded case Ground Fault Circuit Interrupter (Class A, 5mA) with thermal-magnetic protection
  • Voltage Rating: 120/240V AC
  • Current Rating: 40A
  • Frame Size: 100A/QO
  • AIC Rating: 10kA @ 120V
  • Phase: 1
  • Connection: Plug-In, Lug Terminal
  • Wire Size: 14-6 AWG Copper, 12-4 AWG Aluminum
  • Standards: UL Listed, CSA
  • Panel Type: QO Load Centers and NQ Panelboards
  • Dimensions: 105 mm H x 38 mm W x 74 mm D (4.1 in x 1.5 in x 2.9 in)
  • Weight: 1.03 lb
  • Operating Temperature: -25°C to 70°C (-13°F to 158°F)
  • Functions: LI (Long-Time and Instantaneous Trip)
  • Protection: Thermal Magnetic, Ground Fault


Product Identification
  • UPC: 785901764854
  • GTIN: 00785901764854