| Additional socket (insert type) IP44 series | IPGrade | Model | The number of poles |
| IP44 | 16A | 3P 4P 5P | |
| IP44 | 32A | 3P 4P 5P | |
| IP44 | 63A | 3P 4P 5P | |
| Additional socket (insert type) IP67 series | IP67 | 16A | 3P 4P 5P |
| IP67 | 32A | 3P 4P 5P | |
| IP67 | 63A | 3P 4P 5P | |
| IP67 | 63A | 3P 4P 5P | |
| IP67 | 125A | 3P 4P 5P |