3/8' & 7/16" Dia. Flat Cross-Section - ATU

3/8' & 7/16" Dia. Flat Cross-Section - ATU
  • INCOLOY® Sheath
  • 575 - 1,350 Watts
  • 120 and 240 Volt
  • 26 - 38 W/In2
  • 1600°F Max. Sheath Temp.
  • U-Shape Elements
  • UL Recognized Component, CSA Group, CE Mark, and VDE Certification

Tubular heating elements perform exceptional industrial heat transfer by conduction, convection, or radiation to heat liquids, air, gases, and surfaces. In most commercial heater assemblies, tubular element design configurations vary: round, triangular, flat press, and formed. Bends are made to customer requirements: custom built from 0.200" to 0.475" diameters, a multitude of sheath materials with sheath temperature capabilities up to 1600°F, and watt densities to fit many applications up to 600 volts. Available with over 20 optional terminations and many stocked accessories.


  • Clamp-ons
  • Immersion (Corrosive Liquids, Fry Kettles, etc.)
  • Low Temperature Air Heating

Flat-Pressed after triangulation to increase contact surface, improve heat conductivity.

Series Wiring — Two or more elements of equal wattage may be connected in series on line voltages up to 480 volts. For application details see Tubular Heater Overview section.

Type 3 and 4 Terminals — Type 3 (3/8" dia.) are Heliarc-welded to cold pin. Type 4 (7/16" dia.) are threaded end of cold pin. See terminal detail drawings in the Tubular Heaters Overview section.

Bending — Generally not recommended for flat-pressed, triangulated elements.

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Part # Description  
283266 ATU-1310 120V 1000W Buy Now
283274 ATU-1390 240V 900W Buy Now
283282 ATU-1610 120V 1000W Buy Now
283290 ATU-1612 240V 1200W Buy Now
283223 ATU-1060 120V 600W Buy Now
283231 ATU-1057 240V 575W Buy Now
283240 ATU-1260 120V 600 W Buy Now
283258 ATU-1267 240V 675W Buy Now
283303 ATU-2113 240V 1350W Buy Now
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