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Individually customisable FORA compact station

High quality compact stations from BBC Cellpack Power Systems – standardised yet highly customisable. The best solution for your distribution network!


Prefabricated FORA transformer station compliant with SN EN 62271-202, can be operated from the outside

The FORA transformer station allows for designs with the smallest footprint and is assembled by Cellpack onsite in one day thanks to the interior fittings installed at the Villmergen factory. We offer 8 pre-defined sizes for station type FORA, as standard, as well as completely individual designs. The design complies with the latest state-of-the-art technology and meets the requirements of the applicable regulations and technical standards, namely the type test standard SN EN 62271-202 for prefabricated transformer stations.

FORA transformer station – can be operated from the outside


FORA is our prefabricated compact building station featuring a concrete cabin design that can be operated from outside. The stations are fully fitted in our factory, transported by us to the construction site, and installed the same day.

The concrete housing is seamless and comes as a single piece.

Our standard models – consisting of 8 pre-defined FORA stations of different sizes – meet most of our customers’ needs. At the same time, the individual layouts and sizes offer the right solution for virtually any scenario.

The FORA station model fully complies with the requirements of the Ordinance on Heavy Current Installations and relevant engineering standards, namely SN EN 62271-202 for prefabricated stations utilising high voltage and/or low voltage.

Multiple surface and façade variants are available for all station types from Cellpack. The standard model features formwork-smooth exposed concrete.


Product features

free-standing (standard), slope installation, installation on in-situ concrete, other options

Operating temperature
outdoors -40 °C to 35 °C / indoors -5 °C to 45 °C

Type testing
SN EN 62271-202 incl. Internal Arc Classification IAC AB 20 kA (1 s) with common MV switchgear types

Standard façade surface
Exposed concrete grey, colourless impregnation

Optional façade surfaces
Anti-graffiti protection, coated, sandblasted, exposed aggregate concrete, abrasion, chippings, various coverings

Concrete quality
• Reinforced concrete, C40/50, XC4, XD3, XF2 compliant with SN EN 206-1
• Fire resistance class: REI 90 compliant with SN EN 13501-2
• proven oil tightness compliant with VSE 2.19 d

Snow load
as standard, up to 1,500 m above sea level compliant with SIA 261

Interior paint
entire interior painted with white water-based dispersion

Operating, transformer, and service door
Aluminium, colourless anodised or painted, with ventilation louvers

False floor
Consisting of an aluminium frame to which pressure-proof, phenolic resin-coated plywood panels are bolted. The surface of these panels is moisture resistant

Oil collecting sump
as an option, this sump may be made of GFRP, consist of a steel tub, or an oil-tight collecting area integrated into the foundation; optional additional oil-tight coating for protection zone S3 compliant with VSE 2.19 d is available

Lifting equipment
four lifting points are recessed on the foundation's exterior

Cable entries
Entry system, quantity, size and position according to customer specifications

Construction power entry
Ø 100 mm, with aluminium cover (position according to customer specifications)

Earthing system
consisting of an all-round main earth line made of Cu Ø 8 or Ø 10 mm and earthing busbar

Earth cable feedthroughs
two feedthroughs penetrate the diagonally opposite walls of the cable duct and are connected to the concrete reinforcement bars

Station accessories
wide range of options and equipment available