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Square D Q221150AB - Molded Case Circuit Breaker 150A 2-Pole

Square D
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Square D Q221150AB is a molded case circuit breaker designed for providing reliable overcurrent and short-circuit protection in industrial and commercial electrical systems. It is rated for 240V AC systems and features a 150A current rating, utilizing a thermal-magnetic trip mechanism for both long-time delay and instantaneous protection functions. The breaker is constructed as a 2-pole, single-phase unit with an I-Line style plug-in connection for simplified installation and a compact form factor weighing 4 lb. It complies with relevant industry standards and offers an interrupting capacity of 10kA at 240V, making it suitable for panelboards, switchboards, and motor control centers where robust circuit protection is required.

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