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Cutler Hammer AA43A - Thermal Overload Relay 19-135A

Cutler Hammer
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The Cutler Hammer AA43A is a Type A thermal overload relay from the A200 Series, designed to protect motors from overload conditions by monitoring current and tripping when excessive heat is generated. This relay operates with an adjustable amperage range from 19 to 135 amps, ensuring precise protection for various motor loads. Constructed with a robust thermal design, it measures 8.2 inches in length/depth, 5.2 inches in height, and 5.9 inches in width, weighing 2.25 lb. The relay is CSA Certified and UL Listed, meeting rigorous North American safety and performance standards for industrial environments. Typical applications include protecting three-phase motors in manufacturing, pumping, and HVAC systems.

Key Features & Specifications
  • Type: A200 Series thermal overload relay
  • Voltage Rating: Not specified
  • Current Rating: 19 to 135 amps (adjustable)
  • Dimensions: 8.2 in x 5.2 in x 5.9 in (Length/Depth x Height x Width)
  • Standards: CSA Certified, UL Listed
  • Applications: Motor protection in industrial machinery, pumps, and HVAC systems
  • Relay Style: Thermal
  • Amperage Minimum: 19
  • Amperage Maximum: 135
  • Weight: 2.25 lb


Product Identification
  • UPC: 78667822715
  • GTIN: 00786678227153