Square D AR.78 - Heater Element 0.67A 600V
Square D AR.78 - Heater Element 0.67A 600V

Square D AR.78 - Heater Element 0.67A 600V

Square D
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Square D AR.78 is a thermal overload heater element designed for motor control protection against prolonged overcurrent conditions. This solid-state device provides Long-Time and Instantaneous (LI) protection functions, with a full load amp range of 0.52 to 0.67 amps and a voltage rating of 600V. It features a bolt-on connection, weighs 0.06 lb, and is constructed as a 3-pole, 3-phase unit with a current rating of 800A and an AIC rating of 65kA at 480V. Manufactured by Schneider Electric in Mexico, this heater element is suitable for industrial motor control applications requiring reliable overload protection.

Key Features & Specifications
  • Type: A-Series Thermal Overload Heater Element
  • Manufacturer: Schneider Electric
  • Item Subcategory: Heater Element
  • Country of Origin: Mexico
  • Weight: 0.06 lb
  • Functions: LI - Long-Time and Instantaneous
  • Full Load Amp Minimum: 0.52
  • Full Load Amp Maximum: 0.67
  • Voltage Rating: 600V
  • Poles: 3
  • Connection: Bolt-On
  • Protection: Solid State
  • AIC rating: 65kA@480V
  • Phase: 3
  • Current Rating: 800A
  • Mounting Type: Plug-On
  • Trip Class: Class 20 Standard Trip
  • Application: Motor Control Protection