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Square D QOB380VH1021 - 80A 3-Pole Thermal Magnetic Breaker

Square D
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Square D QOB380VH1021 is a 3-pole, 80A thermal magnetic molded case circuit breaker from the QOB Series, designed for overcurrent protection in commercial and industrial power distribution systems. It operates at 120/240VAC with a 22kA interrupting capacity and provides long time and instantaneous trip functions to safeguard branch circuits. The unit features a bolt-on connection, pressure plate terminals, and supports copper or aluminum wire from AWG 4 to AWG 2/0, with dimensions of 3.5 in (89 mm) x 3.0 in (76 mm) x 2.9 in (74 mm) and a weight of 1.36 lb. It is UL Listed and CSA certified, meeting rigorous safety standards for panelboard installations. This breaker is suitable for use in QO panelboards in industrial facilities, commercial buildings, and other applications requiring reliable thermal-magnetic protection.

Key Features & Specifications
  • Type: QOB
  • Current Rating: 80A
  • Poles: 3
  • Voltage Rating: 120/240VAC
  • Protection: Thermal Magnetic
  • Functions: Long Time and Instantaneous Trip
  • AIC Rating: 22kA@240V
  • Connection: Bolt-On
  • Terminal Connection: Pressure Plate
  • Wire Size: AWG 4 to AWG 2/0, Copper/Aluminum
  • Dimensions: 3.5 in (89 mm) x 3.0 in (76 mm) x 2.9 in (74 mm) (Height x Width x Depth)
  • Weight: 1.36 lb
  • Temp Rating: -13°F to 158°F (-25°C to 70°C)
  • Phase: 3
  • Standards: CSA, UL Listed
  • Certification: UL Listed
  • Country of Origin: Mexico


Product Identification
  • UPC: 785901750543
  • GTIN: 00785901750543