UDP In-Ground Distribution Boxes

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UDP In-Ground Distribution Boxes

Secure, watertight underground distribution link switches and services up to 400 A

  • Modular design for 1, 2, 3 and 6-way distribution and customer connection applications
  • Rating 250 A or 400 A
  • Lid load class B (8 tonnes) to class E (40 tonnes)


The Hiko UDP uses industry standard fusegear / switchgear and Langmatz structural pits to provide a safe, robust, reliable, flexible and future-proof solution for underground urban distribution reticulation and service supplies up to 400 A.

Langmatz pits are made in Germany and are engineered for a lifetime of over 40 years. Their use of structural foamed polycarbonate (SFPC) in a honeycomb modular design delivers outstanding performance under dynamic and static load conditions. The SFPC material is extremely strong, heat resistant, flame retardant and resistant to solvents including petrol, diesel and oil. It has been shown by independent testing to be completely non-toxic to ground water.

The UDP is available with lids rated to AS3996 Class B for footpaths and driveways right up to Class E for application in carriageways.

Installation is facilitated by the SFPC pit elements, which can be easily separated into layers and reconnected if required, and by the provision of tool-free conduit knock-outs and an adjustable lid height.

The design of the pit eliminates the need for a concrete vault or collar, reducing time and cost on site.

Fusegear / switchgear is housed horizontally under a watertight composite “bell” which allows continuous operation even in flood conditions. Monitoring equipment can also be accommodated. In some configurations, the “bell” is hinged allowing fusegear / switchgear to be lifted up vertically for inspection and operation.

No special tools or spare parts are required.

The Hiko UDP takes asset lifecycle management to the next level: it future proofs the LV network and eliminates the risks associated with above ground pillars.

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