250 To .875 Coil Diameters Electric Coil Heater OEM / ODM Acceptable

UL Duct Heater, VAV Heater, Dehumidification heater, Air handler heater, Portable HVAC Unit heate

As the world's largest manufacturer of open coil heating elements, Tutco has gained a reputation for producing products that are second to none. We design and build each product to perform with incredible reliability. 

Applications:

• Furnaces
  • Heat Pumps
  • Central Heating/Air Conditioning Units
• Clothes Dryers
  • Residential
  • Commercial
  • Mini-Dryers
• PTAC
  • Air Conditioning

• Roof Top
  • Commercial and Industrial Units
• Unitary
  • Room Air Conditioning/Heating Units
  • Fan Heating Coils
• Miscellaneous
  • Electric Fireplaces
  • Lab Ovens
  • Fast Food Ovens
  • etc.

Coil 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)

Insulation 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

Control Specifications

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.

Connection Specifications

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.
2. The resistance wire is mechanically crimped to a 1/4" of 5/16" spade terminal which is then mounted in either a single or double ceramic insulator block. Pioneered by Tutco in the early 1980's, it has proven both reliable and cost effective for applications of 25 amps or less.

Construction Structure:

• Sturdy Mechanical Joints
  • Welded Construction
  • No Eyelets or Rivets Used
  • Eliminates Mechanical Failure Points
• Industry Proven User Termination
  • Tough Ceramic Terminal Block
  • Rugged Male Quick Connect Terminal
• All Metal Frame
  • Durable Vibration Tested Construction
  • Coated Steel

• Rugged High Temperature Heating Element Terminal Connection
  • Nickel Plated Steel
  • Withstands Continuous 25 Amp Current
  • Improved Electrical Termination Over Eyelet Construction
• Mica Supports
  • Resists Delamination Due to Temperature and Moisture
• Bus Bar Connection
  • High Temperature Nickel Chromium
  • Resists Oxidation and Corrosion
  • Superior Weldability