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We manufacture a wide range of electrical products, meeting all technical and safety requirements.


We pay attention to detail in all phases of construction, in order to guarantee the best quality.

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Distribution Cabinets

Telemetering Cabinets

Public Lighting Control Cabinets

Distribution Boxes - Underground Networks


FP Ground Base


Substation Cabinet

Mobile Substation

Low Voltage Box

Open LV Board


LV Main Board

Terminals | Fuses |

Strip-fuseways | Switches




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Manufacturer of street cabinets for urban distribution and vertical three-pole circuit breakers.


One of the most prominent manufacturers of German origin, present in the world market for over a hundred years and in the Portuguese market since 2006, as a qualified supplier of EDP for the supply of pedestrian cabinets for urban distribution and vertical three-pole circuit breaker bases.

Jean Müller is engaged in the manufacture of a wide range of products:

  • Polyester walk-in boxes and cabinets, for urban energy distribution and telecommunications among other possible applications.

  • Unipolar circuit breakers, from 160 to 1600 amperes.

  • Open (IP00) and protected (IP20) three-pole vertical circuit breakers, from 160 to 630 amperes.

  • Vertical and parallel protected and disconnectable three-circuit breakers, from 160 to 1600 amperes.

  • Fuses for low and medium voltage applications.

  • Measuring equipment, visualization, for all the electric power parameters, through sophisticated software.

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Manufacturer of distribution transformers, oil-insulated and dry, up to 3500 kVA and up to 36 kV.

It also manufactures power transformers up to 150 MVA and up to 220 kV.

Founded in 1998, the company’s goal is to manufacture world-class products, without neglecting the respect for the environment, and so, from the very first moment, the company that we represent has been dedicated to the continuous development of new technologies.

The factory is implanted in a covered area of 26000 m2 and is equipped with the most modern technological means, both in the manufacturing area and in the research and development area, as well as in the testing laboratory.  

It has strict quality control according to ISO 9001:2008, environmental quality according to ISO 14001:2004, and occupational health and safety according to ISO 18001:2007.

Within the wide range of products, we can highlight the following:

  • Oil-insulated distribution transformers;

  • Dry distribution transformers;

  • Power transformers;

  • Amorphous transformers.

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Manufacturer of Current and Voltage Transformers.

The range of medium voltage transformers includes more than 80 basic types and more than 150 special variants, each designed and adapted to customer applications.

All transformers are fully developed and manufactured by our represented company, which operates with a quality assurance certificate according to ISO 9001.

Rigorous delivery times, in order to fully satisfy the needs of our customers.

Current and voltage transformers (ITs and TTs), for indoor use, with insulation up to 36 kV.

All TIs and TTs for medium voltage are vacuum-capsulated with high quality synthetic resin.

Various types of current transformers: e.g. compact type, window type, three-phase, and other special types.

Several types of voltage transformers, namely phase-ground, and phase-phase, with and without fuse, with metallic surface for grounding, three-phase type, and other special types.

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Manufacturer of transformers MT / BT and MT / MT in resin and oil.

Manufacturer of oil transformers up to 3150kVA, and dry transformers up to 18000kVA, according to the IEC60076 standard, for electric power distribution networks in all voltage classes, with particular emphasis on 12.24 and 36kV.

With the experience acquired over its 25 years of existence and equipped with the most advanced technological means, it has a strict quality control of its products in accordance with ISO 9001: 2008, which covers the entire manufacturing process at all stages from offer to sale. It has created a wide range of highly reliable security products, among which the following stand out:

• MT / BT power transformers

• MT / MT power transformers

• Auto-transformers

• Three-phase / single-phase transformers

• Scott type transformers

In the dry transformers range, we highlight the fact that they are built to work in environments with a high degree of humidity and have a low degree of fire risk, in addition to a low emission of toxic and harmful gases, since in their construction they are insulating materials are used, with compounds to retard flames and be self-extinguishing.

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