IMG 6707 web   

The retractable underfloor supply systems RET-EL are modern factory-assembled complete units with water-resistant or waterproof concrete shaft. The trafficable media and distribution columns are installed flush with the floor in separate shafts below the road or of the hall floor. The necessary cable, water, air, hydraulic and sewage pipes are obtained locally and waterproof connected to the shaft wall. The supply cabin, which is equipped with all necessary connections appear by a vertical movement of the shaft on the surface and is immediately ready for use.


RET-EL Classic RET-EL Modern


Classic Climate-Classic Microclimate Modern Climate-Modern Microclimate Plus


Our RET EL concept is patented and based on an objective safety standard, which has been determined by long-standing problem and risk analysis. Our patented system RET-EL with climate control or microclimate control system keeps the underground electrical operating room for a long time to the influence of moisture and humidity in the ground, is armed against the entry of sewage and pressured water, thus allowing use of different electrical and electronic components sunk into the ground.


Compared with competitors our RET EL retractable supply posts have the following advantages:

water resistant or waterproof closable shaft hole
protection against water day, if necessary high water
moisture control
no condensation
evtl. lower installation depth
protect the lifting mechanism when driving
evtl. electric drive
frost proof drain pipe
service friendly


The most important safety aspects the retractable supply systems compared with underfloor supply systems are:

accident-free use, no open shaft hole from the connectors
higher safety standard for accident avoidance for inattentive passersby
better protect underground electrical operating room from rain and snow

To meet our clients, we offer them systems in different designs and price ranges.