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Square D QBA321756 - Molded Case Circuit Breaker 175A 240V

Square D
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Square D QBA321756 is a molded case circuit breaker from the PowerPact Q family, designed to provide reliable overcurrent protection in industrial and commercial power distribution systems. It delivers thermal-magnetic trip protection with Long-Time and Instantaneous (LI) functions, rated for 240VAC and 175A across three poles. The unit features an I-Line style plug-in connection for efficient panelboard installation, weighs 7 lb, and is built on a Q Frame with a 10kA interrupting rating at 240V. This breaker meets multiple international standards including CSA, IEC, EU RoHS, ANCE, and California Proposition 65, ensuring compliance in demanding environments. Typical applications include panelboard installations in industrial facilities and commercial buildings where space efficiency and quick disconnection are required.

Key Features & Specifications
  • Manufacturer: Schneider Electric
  • Item Subcategory: Molded Case
  • Family: PowerPact Q
  • Country of Origin: Mexico
  • Type: QBA
  • Weight: 7 lb
  • Functions: LI - Long-Time and Instantaneous
  • Frame Size: Q Frame
  • Voltage Rating: 240V
  • Poles: 3
  • Connection: I-Line Style Plug-In
  • Protection: Thermal Magnetic
  • AIC rating: 10kA@240V
  • Phase: 3
  • Current Rating: 175A
  • Amperage: 175A
  • Voltage: 240VAC
  • Mounting: I-Line Style Plug-In
  • Trip Unit: Thermal Magnetic with Long-Time and Instantaneous (LI)
  • Interrupt Rating: 10 kA at 240VAC
  • Frequency: 50/60 Hz
  • Overload Protection: Yes
  • Frame: PowerPacT Q
  • Certifications: CSA, IEC, EU RoHS, ANCE, California Proposition 65


QBA321756