Since 1962 Trayer has been a pioneer and leader in the design and manufacture of Submersible and Padmount switchgears maintenance-free electrical distribution systems. The Trayer Submersible and Padmount switchgears for underground distribution network is available in 15kV, 27 kV and 38 kV in tri-phase process of 200 or 600 amperes. It is also available in a cylindrical submersible version ready to enter existing facilities. It can be manufactured with a maximum of 6 tracks, with any configuration of protected inputs and outputs to the load. The insulating medium is available in SF6 gas as well as biodegradable insulating fluid. All routes include grounding blade, in order to land all the cables.

Medium and High Voltage