Fortetsia 3XL is a three-module standard shelter from the Fortetsia line. It has two inputs and outputs with Z-running. A common type of shelter for installation in crowded cities, parks and squares in cities. It is used in demand at enterprises to shelter company employees and, if it is possible to install additional production control posts, when enterprises make a protected post in the shelter and it, together with video surveillance, allows not to stop production during alarms.
| Number of modules | 3 |
| Length | 15 830 mm |
| Width | 3 980 mm |
| Protected area | 24,99 sq.m |
| The number of trawls for the transportation of domes | 2 |
| The number of cars for the transportation of construction walls | 2 |
| Number of cars for transporting floor slabs | 2 |
