Open Coil Duct Strip, Duct Furnace, VAV Heater, Air handler heater, Portable HVAC Unit heater
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
- PTAC
- Roof Top
- Commercial and Industrial Units
- Unitary
- Room Air Conditioning/Heating Units
- Fan Heating Coils
Coil Specifications
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Technology leader NXT Wire
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High Quality Nickel/Chromium resistance wire
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Wire Grades C (60%Ni 15%Cr 25%Fe), A (80%Ni 20%Cr)
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Available Gauges 14 - 28
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Coil Diameters .250 to .875
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Consistent Pitch Windings (Distance between Helixes)
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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
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.
- 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.
- 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.
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.
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
