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Cutler Hammer AA43A - Overload Relay 19-135A (A200 Series)

Cutler Hammer
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Cutler Hammer AA43A is a three-pole thermal overload relay from the A200 Series, designed to protect motors from overload conditions by monitoring current and tripping the circuit when necessary. This relay offers an adjustable amperage range from 19 to 135 amps, features a Type A thermal bimetallic trip unit with a Class 20 trip rating, and supports manual or automatic reset options. It measures 8.2 inches in length/depth, 5.2 inches in height, and 5.9 inches in width, weighs 2.25 lb, and is constructed for starter mounting with ambient compensation and one normally closed auxiliary contact. The unit is UL Listed and CSA Certified for safety and reliability. Typical industrial applications include motor control centers and machinery requiring adjustable overload protection in manufacturing, processing, and automation environments.

Key Features & Specifications
  • Type: Overload Relay
  • Family: A200 Series
  • Relay Style: Thermal
  • Amperage Minimum: 19
  • Amperage Maximum: 135
  • Adjustable amperage range: 19-135 Amps
  • 3 poles
  • Thermal, bimetallic trip unit
  • Class 20 trip rating
  • NEMA A200 frame size
  • Manual or automatic reset selectable
  • Ambient compensated
  • 1NC auxiliary contact
  • Starter mounted
  • Certification: CSA Certified, UL Listed
  • Country of Origin: United States
  • Dimensions: 8.2 in x 5.2 in x 5.9 in (Length/Depth x Height x Width)
  • Weight: 2.25 lb


Product Identification
  • UPC: 78667822715
  • GTIN: 00786678227153