The 300 KE is the first model in the KE series with a headroom of 215 cm—making it the first fully upright work model in the series. With a floor area of 300 × 300 cm, it offers space for larger work groups, bulky equipment, and setup over excavation pits or shafts. Two lockable vents with grilles and rain covers allow smoke to escape during welding and electrical work. The translucent tent fabric allows cable harnesses to be distinguished without color distortion.
| Dimensions (L × W × H) | 300 × 300 × 215 cm |
| Weight | ca. 38 kg |
| Entrances | 3 zippers in the front, 1 m of zipper in the back |
| Features | 2 closable vents with mesh screens and rain covers, reflective strips all around, water-resistant zippers, carrying bag |
| Tent fabric | Translucent, no color distortion |
| Color | White, blue, red |