special 180 thermal class c enamelled aluminum wire has 130, 155, 180, 200, 220 degree.

 

a.vailability: typical sizes from 9-44 AWG, in Thermal Class 130

b. 25-50 AWG for Class 155,  modified polyester enameled aluminum wire

c. 25-46 AWG for Class 180 C, is polyesteramide enameled aluminum wire 

 

The thermal class of enameled wire refers to the temperature rating of the insulation used on the wire. It indicates the maximum temperature that the insulation can withstand over an extended period without significant degradation. 

The Thermal Index (or Relative Thermal Index) for a wire insulation is the temperature at the 20,000 hour intercept. For lower temperatures, follow the insulation life line to determine the expected log average hours of expected life. The thermal class is typically expressed in degrees Celsius.

 

Common thermal classes for enameled wires include:

130°C (Class B): Suitable for applications where the operating temperature does not exceed 130°C.

155°C (Class F): Suitable for applications where the operating temperature does not exceed 155°C.

180°C (Class H): Suitable for applications where the operating temperature does not exceed 180°C.

200°C (Class N): Suitable for applications where the operating temperature does not exceed 200°C.

220°C (Class R): Suitable for applications where the operating temperature does not exceed 220°C.

It's important to choose the right thermal class for a specific application to ensure that the insulation can withstand the temperature conditions it will be exposed to. The thermal class is specified by standards such as the International Electrotechnical Commission (IEC) or the National Electrical Manufacturers Association (NEMA), depending on the region and application. Always check the manufacturer's documentation or product specifications for accurate information on the thermal class of enameled wire.