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Square D QOB3151021 - 3-Pole Shunt Trip Breaker (15A, 10kA)

Square D
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Square D QOB3151021 is a molded case circuit breaker designed for providing reliable overcurrent and short-circuit protection in three-phase electrical systems. It features a 15A current rating and a 120/240VAC voltage rating, housed within a compact 3.0 in x 3.0 in x 2.9 in (76 mm x 76 mm x 74 mm) bolt-on frame. This thermal-magnetic shunt trip breaker is constructed for operation in temperatures from -25°C to 70°C and complies with CSA and UL standards. It is engineered for use in Square D NQOD panelboards, offering 10kA interrupting capacity at 240V and accepting copper or aluminum wire from AWG 14 to AWG 8 via its pressure plate terminals.

Key Features & Specifications
  • Type: Molded Case, Thermal-Magnetic Protection, Shunt Trip, Bolt-On Connection
  • Voltage Rating: 120/240VAC
  • Current Rating: 15A
  • Frame Size: 100A/QO
  • Poles: 3
  • AIC Rating: 10kA @ 240V
  • Phase: 3
  • Functions: Long Time and Instantaneous Trip
  • Connection: Bolt-On
  • Terminal Connection: Pressure Plate
  • Wire Size: AWG 14 to AWG 8 (Copper or Aluminum)
  • Standards: CSA, UL Listed
  • Temp Rating: -25°C to 70°C (-13°F to 158°F)
  • Dimensions: 3.0 in H x 3.0 in W x 2.9 in D (76 mm x 76 mm x 74 mm)
  • Weight: 1.213 lb
  • Panel Type: Square D NQOD Panelboards
  • Certification: UL Listed
  • Family: QOB Series
  • Country of Origin: Mexico


Product Identification
  • UPC: 785901494379
  • GTIN: 00785901494379