1. All 3M Products

3M™ ThermaVolt Insulating Paper

  • Provides high thermal conductivity for cooler coil performance
  • Long-term voltage endurance resists partial discharge damage and provides longer insulation life
  • Ideal for high-temperature electrical insulating applications
  • Compatible with commonly used impregnating resins and varnishes
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Typical Properties
Attribute Name
Value
Application
Dry-Type Transformer, Other
Brand
3M™
Construction
Pure Paper
Electrical Insulation System Thermal Class
220C
Family
ThermaVolt
Flexible Insulation Product
ThermaVolt and ThermaVolt AR Calendered Inorganic Insulating Papers and Laminates
Insulation Construction
Pure Paper
Mechanical Strength
Good
Overall Thickness (Imperial)
10 mil, 15 mil, 5 mil, 7 mil
Overall Thickness (Metric)
127 micron, 178 micron, 254 micron, 381 micron
Product Type
Electrical Insulation Paper, Inorganic Insulating Paper
RoHS 2011/65/EU Compliant
Yes
RoHS EU Comments
RoHS 2011/65/EU compliant without exemption
Thermal Conductivity
Best
Total Thickness
10 mil, 15 mil, 3 mil, 5 mil, 7 mil
Details
  • Provides high thermal conductivity for cooler coil performance
  • Long-term voltage endurance resists partial discharge damage and provides longer insulation life
  • Ideal for high-temperature electrical insulating applications
  • Compatible with commonly used impregnating resins and varnishes
  • Suitable for high-temperature electrical insulation applications rated up to Class 220(R)
  • Found in 3M UL Recognized Insulation Systems

3M™ ThermaVolt Calendered Inorganic Insulating Paper provides high thermal conductivity and dielectric strength. It is ideal for dry type transformers, strip wound coils and electromagnet coils. It provides low moisture absorption, even under high humidity conditions and improves dimensional stability.

It is suitable for Class 220(R) electrical insulation systems and 3M UL Recognized Insulation Systems may be found in UL File No. 65007. REACH Compliant and RoHS 2011/65/EU Compliant‎‎.