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Square D QOB2151021 - Molded Case Breaker 15A 2-Pole (10kA AIC)

Square D
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Square D QOB2151021 is a molded case circuit breaker designed for providing reliable overcurrent protection in single-phase electrical systems. It features a 15A current rating and a 120/240VAC voltage rating, housed within a compact 3.0 in (76 mm) x 2.2 in (57 mm) x 2.9 in (74 mm) bolt-on frame constructed for durability. This unit complies with CSA and UL Listed standards, utilizing a thermal magnetic protection mechanism with long-time and instantaneous (LI) trip functions. It is engineered for integration into Square D NQOD panelboards, offering a 10kA interrupting capacity at 120V for typical industrial and commercial branch circuit applications.

Key Features & Specifications
  • Type: Molded Case Circuit Breaker, Shunt Trip, Thermal Magnetic Protection
  • Voltage Rating: 120/240VAC
  • Current Rating: 15A
  • Frame Size: 100A/QO
  • Poles: 2
  • Phase: 1
  • AIC Rating: 10kA @ 120V
  • Connection: Bolt-On
  • Terminal Connection: Pressure Plate
  • Wire Size: 14 AWG to 8 AWG (Copper/Aluminum)
  • Dimensions: 3.0 in (76 mm) H x 2.2 in (57 mm) W x 2.9 in (74 mm) D
  • Weight: 0.956 lb
  • Temp Rating: -25°C to 70°C (-13°F to 158°F)
  • Standards: CSA, UL Listed
  • Panel Type: Square D NQOD Panelboards
  • Functions: LI - Long-Time and Instantaneous Trip
  • Family: QOB Series
  • Country of Origin: Mexico


Product Identification
  • UPC: 785901494270
  • GTIN: 00785901494270