Cutler Hammer AA21P - Thermal Overload Relay 45A Max (UL Listed)
Cutler Hammer AA21P - Thermal Overload Relay 45A Max (UL Listed)

Cutler Hammer AA21P - Thermal Overload Relay 45A Max (UL Listed)

Cutler Hammer
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The Cutler Hammer AA21P is a thermal overload relay designed to protect AC motors from sustained overcurrent conditions by monitoring motor current and tripping a control circuit when an overload is detected. This relay operates with a minimum amperage of 263 and a maximum amperage of 45, providing a broad adjustable current range for various motor sizes. Constructed with a compact footprint measuring 5 inches in length/depth, 2.1 inches in height, and 3.8 inches in width, and weighing 0.5 lb, it features a thermal relay style that uses a bimetallic strip to sense heat generated by motor current. The AA21P is UL Listed and CSA Certified, ensuring compliance with North American safety and performance standards for industrial electrical equipment. This overload relay is typically applied in motor control centers, conveyor systems, and pump controls where reliable, automatic motor protection is required.

Key Features & Specifications
  • Type: Thermal Overload Relay
  • Voltage: Not specified
  • Current: 45 A maximum, 263 A minimum
  • Dimensions: 5 in x 2.1 in x 3.8 in (Length/Depth x Height x Width)
  • Standards: UL Listed, CSA Certified
  • Applications: Motor protection in industrial control panels, conveyors, pumps
  • Relay Style: Thermal
  • Amperage Maximum: 45
  • Amperage Minimum: 263
  • Weight: 0.5 lb
  • Country of Origin: United States


Product Identification
  • UPC: 786678224244
  • GTIN: 00078667822424