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Square D QO2100 - 100A 2-Pole Circuit Breaker (10kA AIC)

Square D
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Square D QO2100 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 100A current rating and a 120/240V AC voltage rating, housed within a compact 100A/QO frame measuring 89 mm H x 38 mm W x 74 mm D (3.5 in x 1.5 in x 2.9 in). This two-pole, plug-in, thermal-magnetic breaker is CSA Certified, UL Listed, and HACR approved for use in heating, air conditioning, and refrigeration equipment. It is engineered for a 10kA interrupting capacity at 240V and operates reliably across a temperature range of -25 to 70 °C (-13 to 158 °F), making it suitable for installation in QO load centers and NQ panelboards with lug terminals accepting copper or aluminum wire from AWG 4 to 2/0.

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


Product Identification
  • UPC: 78590150130
  • GTIN: 00785901501305