Idaho Laboratories Corporation > Mineral Insulated Cable Dimensions

Our most common Mineral Insulated Cable design for thermocouples. Further designs can be accessed at the links below.


 

Standard Design

Diam.

Diameter Tolerance

Wall

Wire Diameter

2 wire

4 wire

6 wire*

8 wire*

.500''

+.003”/-.003''

.064''

.098''

.080''

.051''

.040''

.375''

+.003”/-.0025''

.048''

.074''

.060''

.038''

.030''

.313''

+.003”/-.0025''

.040''

.061''

.050''

.032''

.025''

.250''

+.003”/-.0025''

.032''

.049''

.040''

.026''

.020''

.188''

+.002”/-.0025''

.024''

.037''

.030''

.019''

.015''

.125''

+.003”/-.0025''

.016''

.025''

.020''

.013''

.010''

.063''

+.0015”/-.002''

.008''

.012''

.010''

n/a

n/a

.040''

+.001”/-.002''

.005''

.008''

.006''

n/a

n/a

.032''

+.001”/-.001''

.004''

.006''

n/a

n/a

n/a

.020''

+.001”/-.001''

.003''

.004''

n/a

n/a

n/a

*may not be available in all desired options                                      
Print Chart   Download Standard_Design.xls

For diameters not listed, please use the following formulas to determine the information you require:
O.D. tolerance = +/- .001" [0.025mm] or +/- 1%, whichever is greater.
Wall thickness = 12% of the O.D. [+/-15% tolerance]
Conductor diameter: 20% of the O.D. [+/-15% tolerance] for 2 wire [single] mineral insulated cable. Duplex material is 16% of the O.D. [+/-15% tolerance]


The sheath of the standard MI cable can withstand an external pressure of 60,000 psi (4218 kg/cm2) as tested at .062" diameter.

Alternate Designs
  • Heavy Wall / Dual Wall

  • Other Links
  • Weight & Metric equivalencies
  • RTD / Passthrough Conductor Cable
  • Haynes™ HR160 Alloy Sheath
  • OMP Cable & Multipoint Specifications/Information
  • Wire Resistance Information
  • Other Information
  • Advanced Thermocouples
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