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Square D Q221100AB - Molded Case 100A 2-Pole 240V

Square D
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Square D Q221100AB is a 2-pole molded case circuit breaker from the Q2 Series, designed for thermal-magnetic protection against overloads and short circuits in electrical distribution systems. It is rated for 240V AC, 100A continuous current, and provides a 10kA interrupting capacity at 240V, with LI (Long-Time and Instantaneous) trip functions for coordinated protection. This unit weighs 4 lb and features an I-Line style plug-in connection for secure mounting in compatible panelboards, with a compact Q-type frame construction. It complies with UL and NEMA standards for industrial and commercial power distribution applications. Typical applications include branch circuit protection in lighting panels, motor control centers, and switchboards in manufacturing facilities and commercial buildings.

Key Features & Specifications
  • Type: Molded Case Circuit Breaker, Q2 Series, Q Frame
  • Voltage Rating: 240V AC
  • Current Rating: 100A
  • Poles: 2
  • Phase: 1
  • Connection: I-Line Style Plug-In
  • Protection: Thermal Magnetic
  • AIC Rating: 10kA@240V
  • Functions: LI - Long-Time and Instantaneous
  • Weight: 4 lb
  • Standards: UL 489, NEMA AB-1
  • Applications: Branch circuit protection in panelboards, switchboards, and motor control centers


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