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Square D QO3151021 - Molded Case Circuit Breaker 15A 3P 240V

Square D
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Square D QO3151021 is a molded case circuit breaker designed for providing reliable overcurrent protection in three-phase electrical systems. It features a 15A current rating and a 240V AC voltage rating, housed within a compact plug-in unit measuring 3.0 in (76 mm) x 3.0 in (76 mm) x 2.9 in (74 mm) and weighing 1.21 lb. The breaker utilizes a thermal-magnetic trip mechanism for both long-time and instantaneous (LI) protection functions, ensuring compliance with industry standards for interrupting a 10kA fault current at its rated voltage. This configuration is typically applied in industrial and commercial panelboards for safeguarding motor and distribution circuits.

Key Features & Specifications
  • Type: Molded Case, Thermal-Magnetic Protection, Plug-In Connection
  • Voltage Rating: 240V AC
  • Current Rating: 15A
  • Dimensions: 3.0 in (76 mm) H x 3.0 in (76 mm) W x 2.9 in (74 mm) D
  • Weight: 1.21 lb
  • Phase: 3
  • Poles: 3
  • AIC Rating: 10kA @ 240V
  • Protection Functions: LI (Long-Time and Instantaneous)
  • Connection: Plug-In
  • Family: QO Series


Product Identification
  • GTIN: 00785901494072