Default product image

Square D QO320 - 3-Pole Circuit Breaker 20A 240V (10kA AIC)

Square D
Price
Save $674.49
/
Condition
  • In stock, ready to ship
  • Backordered, shipping soon
Call for Price
Square D QO320 is a three-pole molded case circuit breaker designed to provide reliable overcurrent protection for three-phase electrical systems. It features a 20A current rating and a 240V AC voltage rating, housed within a compact plug-in unit measuring 76 mm H x 57 mm W x 74 mm D and weighing 0.85 lb. The breaker utilizes a thermal-magnetic trip mechanism for both long-time and instantaneous protection, is CSA certified and UL listed, and is rated for operation from -25 to 70 °C. It is engineered for installation in compatible QO load centers and NQ panelboards, commonly used in commercial and light industrial applications.

Key Features & Specifications
  • Type: Three-pole, plug-in, thermal-magnetic molded case circuit breaker
  • Voltage Rating: 240V AC
  • Current Rating: 20A
  • Frame Size: 100A/QO
  • AIC Rating: 10kA @ 240V AC
  • Poles: 3
  • Phase: 3
  • Connection: Plug-in
  • Terminal Connection: Pressure plate
  • Wire Size: 14 AWG to 8 AWG (Copper or Aluminum)
  • Protection: Thermal Magnetic
  • Functions: Long Time and Instantaneous Trip
  • Breaker Type: Standard
  • Panel Type: QO Load Centers and NQ Panelboards
  • Standards: CSA Certified, HACR, UL Listed
  • Temp Rating: -25 to 70 °C (-13 to 158 °F)
  • Dimensions: 76 mm H x 57 mm W x 74 mm D (3.0 in x 2.2 in x 2.9 in)
  • Weight: 0.85 lb


Product Identification
  • UPC: 785901400684
  • GTIN: 00785901400684