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Square D QOB330AS - Molded Case 30A 3-Pole Breaker

Square D
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The Square D QOB330AS is a three-pole, bolt-on molded case circuit breaker from the QOB Series, designed for overcurrent protection in industrial and commercial power distribution systems. It operates at a voltage rating of 120/240VAC with a 30A current rating and a 10kA interrupting capacity at 240V, featuring a pressure plate terminal connection for secure wiring. This unit measures 3.09 inches in depth and 4.44 inches in width, weighing 2.291 lb, and is constructed for bolt-on mounting in compatible panelboards. It is UL Listed and CSA certified, meeting stringent safety and performance standards for North American electrical installations. Typical applications include branch circuit protection in lighting, appliance, and motor control panels within manufacturing facilities and commercial buildings.

Key Features & Specifications
  • Type: Molded Case Circuit Breaker, QOB Series, Bolt-On
  • Voltage Rating: 120/240VAC
  • Current Rating: 30A
  • Dimensions: Depth 3.09 in (78.49 mm) x Width 4.44 in (112.78 mm)
  • Standards: CSA, UL Listed
  • Applications: Industrial and commercial power distribution, branch circuit protection
  • Poles: 3
  • Phase: 3
  • AIC rating: 10kA@240V
  • Connection: Bolt-On
  • Terminal Connection: Pressure Plate
  • Weight: 2.291 lb
  • Manufacturer: Schneider Electric
  • Country of Origin: United States


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