Coil and Cable Heaters

Low Mass with High Versatility

The versatile Watlow coil/cable heater can be formed into a variety of shapes. Cable heaters are small diameter, high-performance units, fully annealed and readily bent to a multitude of configurations.

The cable heater can be formed into a compact, coiled nozzle heater supplying a full 360 degrees of heat with optional distributed wattage. A straight cable heater can snake through an equipment application. Flat spiral configurations can be used in high-tech manufacturing while a star wound cable can be used for air and gas heating.

Different applications require different construction methods, including one, two or four resistance wires; parallel coil or straight wire; drawn or swaged sheaths; with or without internal thermocouples; leads exiting from one or both ends, and round, rectangular or square cable cross sectionals.

Whatever the application, the Watlow coil heater and cable heater can be shaped to fit.

features & benefits

High ductility allows the heater to be cold-formed into almost any shape

Low mass allows for quick response in both heating and cooling

Capable of operating in unusual environments, including cryogenic and sub-freezing temperatures, high vacuum, gaseous and liquid immersion heaters

240V maximum voltage

Durable construction materials for high-temperature corrosion and oxidation resistance along with ideal expansion properties


Maximum Operating Temperatures
Maximum Watt Densities
304 Stainless Steel 1200 650 30 4.6
Alloy 600 1200 650 30 4.6

related documentation

  • Brochures

    Thermal Solutions for Foodservice Equipment

    Thermal Solutions for Medical and Clinical Applications

    Thermal Solutions for Photovoltaic Processing Equipment

  • Catalogs

    Thermal Component Reference Guide

    Heater Catalog (Section) - Agency Certifications

    Heater Catalog (Section) - Heater Reference Data

    Heater Catalog (Section) - Heater Selection Matrix

    Heater Catalog (Section) - Specialty Heaters

    Heaters Catalog

  • Specification Sheets

    Cable & Coil Heaters

    Coiled Nozzle Heaters

    High Performance Metal Sheath Heaters

    0.058-Inch Mini-Cable Nozzle Heater

    Packaging Seal Bar Heaters

    STARFLOW Circulation Heaters

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quality certificates 1

ISO 90012008 Exp 2018 St Louis