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Square D QOU320VH - Molded Case 20A 3-Pole 240V

Square D
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Square D QOU320VH is a 3-pole, 20A molded case circuit breaker from the QOU Series, designed for thermal-magnetic overcurrent protection in air conditioning, refrigeration, and heating equipment panels. It operates at 240V AC with a high interrupting capacity of 22kA at 240V AC, and features LI (Long Time and Instantaneous) trip functions for reliable fault clearance. The breaker measures 4.05 in (102.87 mm) x 2.25 in (57.15 mm) x 2.95 in (74.93 mm) (H x W x D), weighs 1.11 lb, and uses a bolt-on connection with reversible slotted box lug terminals for line and load wiring from 14 AWG to 2 AWG aluminum/copper. It is UL listed, CSA certified, and IEC compliant, with an operating temperature range of -13°F to 158°F (-25°C to 70°C). This unit is suited for 3-phase industrial applications requiring robust, high-interrupting circuit protection in panelboards and equipment disconnects.

Key Features & Specifications
  • Type: QOU
  • Family: QOU Series
  • Item Subcategory: Molded Case
  • Manufacturer: Schneider Electric
  • Country of Origin: Mexico
  • Current Rating: 20A
  • Voltage Rating: 240V
  • Poles: 3
  • Phase: 3
  • Frame Size: 100A/QOU
  • Breaker Type: High Interrupting Capacity
  • Protection: Thermal Magnetic
  • Functions: LI - Long Time and Instantaneous
  • AIC rating: 22kA@240V
  • Connection: Bolt-On
  • Terminal Connection: Slotted Box Lug (Reversible Line and Load)
  • Wire Size: AWG 14...AWG 2 aluminium/copper
  • MCM Size: Min. Wire Size 14 AWG Max. Wire Size 2 AWG
  • Panel Type: Air Conditioning and Refrigeration Equipment, Heating
  • Temp Rating: -13–158 °F (-25–70 °C)
  • Dimensions: 4.05 in (102.87 mm) x 2.25 in (57.15 mm) x 2.95 in (74.93 mm) (Height x Width x Depth)
  • Weight: 1.11 lb
  • Standards: CSA, IEC, UL listed
  • Certification: IEC, UL listed


Product Identification
  • UPC: 785901560012
  • GTIN: 00785901560012