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Square D QOU1201021 - Molded Case Breaker 20A 1-Pole (10kA AIC)

Square D
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Square D QOU1201021 is a molded case circuit breaker designed for providing reliable overcurrent protection in single-phase electrical systems. It features a 20A current rating and a 120/240V voltage rating, housed within a compact 100A frame with dimensions of 4.05 in (102.87 mm) H x 1.5 in (38.1 mm) W x 2.95 in (74.93 mm) D and a weight of 0.66 lb. This thermal magnetic breaker, with a 10kA interrupting rating at 120V, utilizes long-time and instantaneous trip functions and is constructed for unit mounting with slotted box lug terminals compatible with 14 to 2 AWG wire. It complies with CSA, IEC, and UL standards and is typically applied in air conditioning, refrigeration, and heating equipment panels, operating effectively within a temperature range of -25 to 70 °C.

Key Features & Specifications
  • Type: Molded Case Circuit Breaker, Shunt Trip, Thermal Magnetic Protection
  • Voltage Rating: 120/240V AC
  • Current Rating: 20A
  • Frame Size: 100A/QOU
  • Poles: 1
  • Phase: 1
  • AIC Rating: 10kA @ 120V
  • Connection: Unit Mount, Slotted Box Lug (Line and Load)
  • Wire Size: 14 AWG to 2 AWG (Aluminium/Copper)
  • Dimensions: 4.05 in H x 1.5 in W x 2.95 in D (102.87 mm x 38.1 mm x 74.93 mm)
  • Weight: 0.66 lb
  • Temp Rating: -25°C to 70°C (-13°F to 158°F)
  • Functions: Long-Time and Instantaneous Trip
  • Standards: CSA, IEC, UL Listed
  • Panel Type: Air Conditioning, Refrigeration Equipment, Heating


Product Identification
  • UPC: 078590151010
  • GTIN: 00785901510109