| Thermal Class | Insulation Type | NEMA Standard |
| 105oC |
| Plain Enamel |
| Polyurethane (Poly) |
| Formvar |
| Bondable Poly |
| Bondable Poly-Nylon |
| Bondable Formvar |
|
| NEMA MW 1-C |
| NEMA MW 2-C |
| NEMA MW 15-C |
| NEMA MW 3-C |
| NEMA MW 29-C |
| NEMA MW 19-C |
|
| 130oC |
| Polyurethane H.T. |
| Polyurethane-Nylon |
|
| NEMA MW 75-C |
| NEMA MW 28-C |
|
| 155oC |
|
| NEMA MW 5-C |
| NEMA MW 79-C |
| NEMA MW 80-C |
|
| 180oC |
|
| NEMA MW 30-C |
| NEMA MW 76-C |
| NEMA MW 77-C |
| NEMA MW 78-C |
| N/A |
|
| 200oC |
|
| NEMA MW 44-C |
| NEMA MW 35-C |
| N/A |
|
| 220oC |
|
|