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Square D QDA321756 - Molded Case 175A 3-Pole 240V

Square D
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The Square D QDA321756 is a molded case circuit breaker from the I-Line family, designed for thermal magnetic protection in industrial power distribution systems. It operates at 240V with a 175A current rating and a 25kA@240V interrupting capacity, providing LI (Long-Time and Instantaneous) protection functions. This 3-pole breaker features an I-Line style plug-in connection, a Q Frame size, and weighs 4 lb, with construction originating from Mexico by Schneider Electric. It complies with industry standards for molded case breakers, ensuring reliable overcurrent protection in commercial and industrial applications. Typical uses include main or feeder protection in panelboards and switchboards requiring 3-phase, 240V service.

Key Features & Specifications
  • Type: Molded Case, Thermal Magnetic
  • Voltage Rating: 240V
  • Current Rating: 175A
  • Poles: 3
  • Phase: 3
  • AIC Rating: 25kA@240V
  • Frame Size: Q Frame
  • Functions: LI - Long-Time and Instantaneous
  • Connection: I-Line Style Plug-In
  • Weight: 4 lb
  • Country of Origin: Mexico
  • Family: I-Line
  • Item Subcategory: Molded Case


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