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Cutler Hammer AA43AB - Thermal Overload Relay 19-135A

Cutler Hammer
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Cutler Hammer AA43AB is a NEMA 3-pole thermal overload relay from the A200 Series, designed for motor protection with ambient compensation and a Form C alarm contact. It operates with a full load current range of 19 to 135 amperes, supporting both automatic and manual reset options for Class 20 protection. The relay measures 8.2 inches in length, 5.2 inches in height, and 6 inches in width, weighing 2.2 lb, and features screw terminals for wiring. It is UL Listed and CSA Certified, built to NEMA standards for reliable performance in industrial environments. This starter-mounted relay is suitable for use with motor starters in applications requiring thermal overload protection and status indication.

Key Features & Specifications
  • Type: A
  • Relay Style: Thermal
  • Amperage Minimum: 19
  • Amperage Maximum: 135
  • Family: A200 Series
  • Country of Origin: United States
  • Dimensions: 8.2 in x 5.2 in x 6 in (Length/Depth x Height x Width)
  • Weight: 2.2 lb
  • Certification: UL Listed, CSA Certified
  • 3-pole overload relay
  • Class 20
  • Starter mounted
  • 1NC auxiliary contact (Form C)
  • Ambient compensated
  • Automatic and manual reset
  • Screw terminals
  • Enclosure Type: NEMA 5


Product Identification
  • UPC: 78667882270
  • GTIN: 00786678822709