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Square D Q221150AC - Molded Case Circuit Breaker 150A 2-Pole

Square D
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Square D Q221150AC is a molded case circuit breaker designed for providing reliable overcurrent protection in industrial and commercial electrical systems. It features a 150A current rating and a 240V AC voltage rating for single-phase applications, utilizing a thermal-magnetic trip mechanism that combines long-time and instantaneous (LI) protection functions. The breaker is constructed as a 2-pole, I-Line style plug-in unit with a compact design, weighing 4 lb, and is built to withstand fault currents up to 10kA at 240V. It complies with UL standards for safety and is engineered for integration into panelboards and switchboards requiring robust circuit protection.

Key Features & Specifications
  • Type: Molded Case Circuit Breaker, Thermal Magnetic Protection, I-Line Style Plug-In
  • Voltage Rating: 240V AC
  • Current Rating: 150A
  • Poles: 2
  • Phase: 1
  • AIC Rating: 10kA @ 240V
  • Protection Functions: LI (Long-Time and Instantaneous)
  • Trip Type: Thermal Magnetic
  • Connection: Plug-In
  • Certification: UL Listed
  • Family: Q2 Series
  • Breaker Type: Q
  • Weight: 4 lb


Product Identification
  • UPC: 635909378747