Open Coil Heaters

Specifications

• Technology leader NXT Wire
• High Quality Nickel/Chromium resistance wire
• Wire Grades C (60%Ni 15%Cr 25%Fe), A (80%Ni 20%Cr)
• Available Gauges 14 – 28
• Coil Diameters .250 to .875
• Consistent Pitch Windings (Distance between Helixes)
• Solutions provided to best fit design objectives utilizing various coil return configurations (Large Diameter Coils Only)

Small Diameter Coils

Large Diameter Coils

Coil Returns

Specifications

• Patented Point Suspension or Traditional Cylindrical Bushings
• Steatite Material
• Manufactured to the industry’s tightest current leakage specifications
• Point Suspension Offers:
  • Full Coil Exposure to the Airflow
  • Allows Utilization of Large Diameter Coils
  • Greater Stretch Ratios
  • Positive Coil Locking
  • Minimal Insulator Abrasion

	Cylindrical Bushing
	Single Plane Point Suspension

	Single Plane Point Suspension
	Double Plane Point Suspension

	Double Plane Point Suspension
	Double Plane Point Suspension

	Clip and Insulator Assembly
	Clip and Insulator Assembly

	Clip and Insulator Assembly
	Clip and Insulator Assembly

Two proven methods of heating element terminations at Tutco insure a sturdy and electrically sound connection. The methods are compatible with ring, slotted and female terminals.

1. The resistance wire is mechanically staked and heli-arc welded to an appropriately sized slotted-head machine screw. It is then mounted with anti-rotational insulators to prevent movement during installations and operation.

	Anti-Rotation Insulators
	Staked and Heli-Arc Weld

	Crimp Option 1
	Crimp Option 2

	Crimp Option 3
	Double Ceramic Insulator Block

Tutco’s, engineering and research & development have spent years providing the highest of quality products. A full line of safety limits and controls are available with any needed assistance from our staff.

One-Shot Fusible Line

Tutco’s Open Coil Heaters feature:

TUTCO’s heating design innovations are made available with the most advanced materials having the highest performance level possible. To ensure performance every product meets the most rigorous quality standards. Those standards as applied by U.L. and C.S.A. regulations.  Product applications undergo testing in our state of the art Research & Development Lab where years of experience combined with technical expertise allow for every design to be reviewed for functional integrity, adherence to industry standards and the highest quality product to support innovation in heating design. (Visit the TUTCO Difference Page for more information)