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Square D QOB315AS - 15A 3-Pole Bolt-On Circuit Breaker

Square D
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Square D QOB315AS is a 3-pole, 15A bolt-on molded case circuit breaker from the QOB Series, designed for overcurrent and short-circuit protection in commercial and industrial electrical systems. It operates at 120/240VAC with a 10kA interrupting rating at 240V, utilizing thermal magnetic protection with LI (Long-Time and Instantaneous) trip functions. The unit weighs 5 lb, features a pressure plate terminal connection, and is built for bolt-on mounting to ensure secure installation in compatible panelboards. It is UL Listed and CSA certified, meeting stringent industry standards for safety and performance. This breaker is typically applied in branch circuit protection for lighting, motor, and distribution panels requiring reliable 3-phase, 3-wire protection.

Key Features & Specifications
  • Type: QOB
  • Current Rating: 15A
  • Voltage Rating: 120/240VAC
  • Poles: 3
  • Phase: 3
  • Connection: Bolt-On
  • Protection: Thermal Magnetic
  • Functions: LI - Long-Time and Instantaneous
  • AIC Rating: 10kA@240V
  • Terminal Connection: Pressure Plate
  • Weight: 5 lb
  • Standards: CSA, UL Listed
  • Certification: UL Listed
  • Item Subcategory: Molded Case
  • Family: QOB Series


Part Number: QOB315AS