- It protects control terminals which exposes to the outside, and prevents the damages resulted from foreign substances.
- It is categorized into 8 types by ratings and poles.
| Ampere frame | Cover length (mm) |
|---|---|
| 2000AF 3P | 334 |
| 2000AF 4P | 419 |
| 4000AF 3P | 412 |
| 4000AF 4P | 527 |
| 5000AF 3P | 629 |
| 5000AF 4P | 799 |
| 6300AF 3P | 785 |
| 6300AF 4P | 1,015 |
