Specialized cable management enclosure engineered to segregate and distribute power, voice (telephone), and data (computer) connections directly from subfloor trunking layouts to workstations.

Specialized cable management enclosure engineered to segregate and distribute power, voice (telephone), and data (computer) connections directly from subfloor trunking layouts to workstations.


Specifications
SKU
Compartment Underfloor Service Box
Details

United U-LI's Underfloor Service Outlet Box is a specialized cable management enclosure engineered to segregate and distribute power, voice (telephone), and data (computer) connections directly from subfloor trunking layouts to workstations. Fabricated primarily from rigid, non-corrodible hot-dipped galvanized steel sheets (or zinc-alloy/aluminum depending on the design variant), these boxes are commonly used in commercial offices, schools, and institutions with raised access floor or concrete screed configurations.
Key Specifications & Construction
The U-LI underfloor service box is modularly divided into three core components: the box base frame, the flyover bridge (which prevents data cables from intersecting with electrical power), and the trap/frame cover assembly.
  • Sizes Available: The standard sizing footprint includes 250mm x 250mm and 300mm x 300mm variants.
  • Compartment Layout: Typically available in 2-compartment or 3-compartment configurations to allow discrete structural physical barriers between electrical lines and communication networks.
  • Overall Depth Adjustments: Standard baseline module depths vary between 56mm (suited for 25mm deep trunking) and 75mm (suited for 32mm/38mm deep trunking).
  • Leveling System: They use specialized leveling screws (such as the UL-LS38, UL-LS60, or UL-LS95) to adapt height adjustment ranges anywhere from 56mm up to 130mm to meet flush floor alignment criteria.
  • Floor Finish Recess: Designed with a structural recessed frame rim (typically 6mm to 9mm), allowing the matching surrounding carpet, parquet, or vinyl floor tiles to be inserted directly into the lid top for a clean, integrated aesthetic look.
Product Selection Reference
When ordering from regional stockists or electrical distributors like GEASB, the parts numbers indicate specific dimensional profiles:
Product Code Dimensions (Footprint x Depth) Compartment Count Cover Details
UL-UFSBM 250/2/1 250 x 250 x 75–95 mm 2 Compartments 1 Trap Lid
UL-UFSBM 250/3/1 250 x 250 x 75–95 mm 3 Compartments 1 Trap Lid
UL-UFSBM 300/2/1 300 x 300 x 75–95 mm 2 Compartments 1 Trap Lid
UL-UFSBL 250/3/1 250 x 250 mm Footprint 3 Compartments 1 Trap Lid
(Note: Sockets, faceplates, and modular switch mechanisms are typically ordered separately to fit the custom configuration required for your project).
Are you currently replacing an existing unit, doing a new installation, or sourcing matching faceplates and internal sockets? Let GEASB know the specific depth or part requirements you need so we can locate more structural detail.

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