| Material | polypropylene |
| Color | green (lid) black (chamber) |
| Dimensions (H × W × D) | 395 × 270 × 300 mm |
| Weight | 3.3 kg |
| Environment | outdoor |
| 493862 | Underground Chamber STANDARD | |
| 854G.L1/000XF | Plastic Base for Underground Chamber STANDARD |
The Underground Chamber STANDARD is designed to protect critical underground optical components (most commonly fiber optic closures). It defines a working space to allow convenient access to the components and to carry out servicing. The chamber lid is fitted with a protective locking screw. Chamber inputs should be made exclusively using a hole saw. Never damage the lower flange of the chamber – this risks loss of torsional stiffness and the wall being pushed inward due to ground pressure. The chamber is not intended for traffic by heavier equipment.