| Model | Without connector |
| Surface protection | Untreated |
| Construction type | Reducing symmetrical |
| Material quality | GRP (Glass fiber reinforced plastic) |
| Width (big), mm | 300 |
| Width (small), mm | 150 |
| Material | GRP (Glass fiber reinforced plastic) |
| Cable tray height, mm | 150 |
| Product type | Accessories for ladder trays |
| Type of accessories | Central reducer |
| Height | 150 mm |
| Material | Fiberglass |