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Square D AU33.0 - Heater Element 27-33A (Thermal Overload)

Square D
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Square D AU33.0 is a heater element designed for motor control overload protection within the AU Series. This component operates as a thermal overload relay heater to match motor full-load current, ensuring precise protection against sustained overcurrents. The AU33.0 is constructed as a compact, plug-in unit weighing 4 lb and manufactured in Mexico by Schneider Electric. It complies with NEMA and IEC standards for industrial motor control applications. Typical applications include protecting AC induction motors in conveyors, pumps, and compressors within manufacturing and processing facilities.

Key Features & Specifications
  • Type: Heater Element, thermal overload, plug-in design
  • Voltage Rating: 600 VAC
  • Current Rating: 27.0-33.0 A (adjustable range)
  • Dimensions: Standard NEMA size for AU Series
  • Standards: NEMA, IEC, UL Listed
  • Applications: Motor overload protection for conveyors, pumps, compressors
  • Weight: 4 lb
  • Family: AU Series
  • Country of Origin: Mexico


Product Identification
  • UPC: 766156000812
  • GTIN: 00766156000812