Insulation classes / thermal classes
Standards such as IEC 60216 define a maximum permissible operating temperature for materials used for insulation in electrical engineering. A frequently used criterion for classification in the corresponding thermal class is the breakdown voltage. It must still be 50% of the initial value after 20,000 hours at maximum operating temperature (thermal class).
However, the heat classes do not provide any information on the maximum short-term load temperature. It is usually considerably higher (e.g. polyester at approx. 220°C/30min; Kapton approx. 400°C/hour). In non-electrotechnical applications with only short-term high temperature loads, materials with a low continuous temperature load capacity can therefore often be used.
For our electrical insulating adhesive tapes, we use only films, fabrics and nonwovens manufactured for these applications. They meet the requirements of electrical engineering by the nature of their production and design. The adhesives used are suitable for electrical engineering and do not chemically attack other plastics or, for example, enamel-insulated wires. Many electrical insulating tapes are certified according to UL listed (E 93622).
In addition to the program shown here, we have a large number of other, customer-specific adhesive tapes - if you are interested, please ask us!
Max. Temperature |
UL 1446 |
IEC 60085 |
Max. Temperatur
|
- |
- |
Y |
90°C |
- |
- |
A |
105°C |
- |
- |
E |
120°C |
130°C |
B |
B |
130°C |
155°C |
F |
F |
155°C |
180°C |
H |
H |
180°C |
200°C |
N |
200 |
200°C |
220°C |
R |
220 |
220°C |
240°C |
S |
250 |
250°C |