Watlow Multicoil Tubular Heaters

  • Terminations: 392°F lead wires, or 482°F GGS
  • Moisture seals options
  • Mounting options
  • Max trim length 237 in (6020 mm)
  • Sheath materials options
  • Internal thermocouple Type K (Type J option)
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Watlow Multicoil Tubular Heaters

The Multicoil Tubular Heaters by Watlow have multiple coils and thermocouples packaged in one sheath for quick installation.

The MULTICOIL heater tubular element answers the need for a versatile. Watlow’s patent method of packaging a thermocouple inside of a heater is unique. With one or more resistance coils, this gives the ability to sense a heater’s internal temperature accurately, every time. Moreover, this is the first tubular heater in the industry with three-phase capability.

The three coil, three-phase heater will offer a compact package solution while delivering the full power required in a compact heater package. Previously three separate heaters would have been required to do the same job; therefore Watlow’s MULTICOIL heater capabilities save money.

Multicoil Tubular Heaters Features and Benefits

Three-phase capability
• Results in one element versus three, lower amperage, reduced installation time and lower overall cost

Multiple coil operations
• Reduces inventory by allowing dual voltage capability Versatile forming capabilities
• Forms into many configurations

Internal construction with sensor
• Allows space savings because drilling and tapping of flange is unnecessary; plus, the interior thermocouple eliminates contamination buildup around the external sensing tip, reducing the possibility of false readings

Watlow Multicoil Performance Capabilities

  • Watt densities up to 60 W/in2 (9.3 W/cm2)
  • Sheath temperatures up to 1600°F (870°C)
  • 304 and 316 stainless steel sheath temperatures up to 1200°F (650°C)

Typical Applications for Watlow Multicoil

Some applications are foodservice equipment, process, medical, milled groove, plastics, plating, oven heating, and semiconductor.

We provide engineering and product support for your application – Contact us.

Technical Documentation

Download PDF file:

Watlow Multicoil Tubular Heaters