Hollow space floor box, consists of a Sendzimir hot-dip galvanized steel sheet box with four bendable side walls and grounding clamp for subsonic-noise free and height-undependable assembly, can be used as pull- and installation box, openings for insertion of a shuttering unit that will be replaced with a round plastic installation unit during final assembly.
data sheet Assembly Instruction
Continously hot galvanized (Sendzimir process) (DIN EN 10346)
| height | HminMinimum installation height | width | width | length 1 | length 2 | E fitting dimension | mounting box Maximum number of installable device casings. | weight | |||
|---|---|---|---|---|---|---|---|---|---|---|---|
| UBDHB250 28-259R | 31 mm | 67 mm | 385 mm | 400 mm | 385 mm | 400 mm | 260 mm | double | 3,1 kg | ||
| UBDHB250 38-259R | 41 mm | 77 mm | 385 mm | 400 mm | 385 mm | 400 mm | 260 mm | double | 3,2 kg | ||
| UBDHB250 48-259R | 51 mm | 87 mm | 385 mm | 400 mm | 385 mm | 400 mm | 260 mm | double | 3,3 kg |
Underfloor systems 
Floor trunking systems 
Hollow space floor box - Floor trunking systems 
Hollow space floor box, round