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Square D QO280 - 80A 2-Pole Circuit Breaker (10kA AIC)

Square D
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Square D QO280 is a molded case circuit breaker designed for providing reliable overcurrent protection in residential and light commercial electrical systems. It features a thermal-magnetic trip mechanism for both long-time delay and instantaneous response, rated for 80A at 120/240V AC with a 10kA interrupting capacity. The compact, two-pole plug-in unit measures 3.5 in (89 mm) H x 1.5 in (38 mm) W x 2.9 in (74 mm) D and is constructed with lug terminals compatible with copper or aluminum wire from AWG 4 to 2/0. It is CSA certified, UL listed, and HACR approved for use in heating, air conditioning, and refrigeration equipment, ensuring compliance with industry safety standards for installation in QO load centers and NQ panelboards.

Key Features & Specifications
  • Type: Molded Case, Thermal Magnetic Protection, Standard Breaker
  • Voltage Rating: 120/240V AC
  • Current Rating: 80A
  • Frame Size: 100A/QO
  • Poles: 2
  • AIC Rating: 10kA @ 240V
  • Connection: Plug-In, Lug Terminal
  • Wire Size: AWG 4 to AWG 2/0, Copper or Aluminum
  • MCM Size: Min. 1/0 AWG, Max. 300 MCM
  • Dimensions: 3.5 in H x 1.5 in W x 2.9 in D (89 mm x 38 mm x 74 mm)
  • Weight: 0.71 lb
  • Phase: 1
  • Panel Type: QO Load Centers, NQ Panelboards
  • Temp Rating: -25 to 70 °C (-13 to 158 °F)
  • Standards: CSA Certified, HACR, UL Listed
  • Functions: LI (Long-Time and Instantaneous Trip)
  • Protection: Thermal Magnetic
  • Breaker Type: Standard
  • Certification: HACR, UL Listed


Product Identification
  • UPC: 785901501329
  • GTIN: 00785901501329