Tempco Custom Heater Manufacturing

Mightyband Round & Square/rectangular Mineral Insulated coil Heater Specifications & Tolerances

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Performance Ratings

Standard Sheath Material: 304 stainless steel
For temperatures up to 1500°F (815°C)

Optional Sheath Material (Round Cable): Inconel® 600
For temperatures up to 1800°F (982°C)

Electrical Ratings

Resistance Tolerance:  ±10%

Wattage Tolerance: ±10%

Maximum Amperage (Round Cable): 20 Amps

Standard Voltage: 120 or 240 Volts
Higher or lower voltages applicable for specific heater designs; consult Tempco with your requirements.

Maximum Wattage (Square/Rectangular Cable):

  • 720 watts (for 240 volt heaters)
  • 300 watts (for 120 volt heaters)

Maximum Watt density (Square/Rectangular Cable):  134 watts/in2 applied to nozzle

Dimensional Specifications

Standard square cable:  .0.125", 0.134" square
Except non-heated tail section, which is 1/8" round

Standard rectangular cable:  .0.110" × 0.160"

Standard round cable diameters:  .0.115", 0.120", 0.125" 0.132", 0.153", 0.163"
Others available upon request.

Cable diameter tolerance:  ±0.005

Length of non-heated section (Square/Rectangular Cable):  1" to 6" (specify when ordering)

Standard potting adapter: 

  • 5/16" Diameter – Used with heater only and heater with T/C leads, 20 gauge and under.
  • 1/2" Diameter (Round Cable only) – Used with heater only and heater with T/C leads, 18 gauge to 10 gauge.

Standard potting adapter length:  1-1/2"
Other lengths available.

Standard coil I.D. (Round Cable):    From 3/8" up to 2-1/2" in any increments.
Applicable Coil I.D. is subject to cable diameter.

Coil I.D. Tolerance (Round Cable):

  • 3/8" to 3/4", +0.000", – 0.020"
  • 7/8" to 1-1/4", +0.000", – 0.030"
  • 1-1/2" to 2-1/2", +0.000", – 0.060"

Coil Width (length) (Round Cable):

  • Up to 12" on 3/8" to 3/4" I.D.
  • Up to 16" on 7/8" to 1-1/4" I.D.
  • Up to 18" on 1-1/2" to 2-1/2"

Coil Width Tolerance (Round Cable):

  • 0 to 6":  +0, –1/8"
  • 6 to 12":  +1/8", –1/4"
  • 12 to 18":  ±1/4"

 

Thermocouple Specifications

Standard Thermocouple:  ANSI Type J

Optional Thermocouple:  ANSI Type K

Minimum Bending Radius:  Two times the sheath diameter

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  CORPORATE HEADQUARTERS
Tempco Electric Heater Corporation

607 N. Central Ave. | Wood Dale, IL 60191-1452 USA
Phone: 630.350.2252 | Toll Free: 888.268.6396
Fax: 630.350.0232 | Email: [email protected]

TEMPCO BRANCH OFFICES
We have Branch Offices located across the United States.

 


 

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