Laboratorio Electrotécnico is a family company established in Barcelona in March 1918.

In 1958 the production centre in Cornellà de Llobregat was opened and the company focused on the manufacture of MV switches, circuit breakers, instrument transformers and medium-voltage distribution panels. After several fusions and/or takeovers with Maniobra y Medición Eléctrica, Gardy Suiza and Merlín-Gerín, in 1980 it became a cooperative society and the headquarters moved to its current location in Cornellà de Llobregat, where our production centre is also situated.


More than 100 years at the service of the customer


In recent years we have focused on manufacturing voltage and current transformers, measuring and protecting high voltage, and manufacturing indoor service switches.

The renowned quality of our products is assured, in addition to our long experience, by the type tests carried out in independent and international accredited laboratories.

The ISO 9001 Quality Management System has, since 1997, been implemented in all the productive and management processes of the Transformer Division of our company.

This high level of quality and the high qualification and experience of our team of professionals allow us to offer our clients a convenient and efficient service. This commitment to quality and service has earned us the recognition of the most important companies in the electricity sector, national and international, such as: ORMAZABAL, SIEMENS, EFACEC, SCHNEIDER, INAEL, ADIF…

Laboratorio Electrotécnico strives to carry out its activity caring for the environment and complying with environmental regulations applicable to its products and processes. Therefore, the company has designed and introduced an environmental management system in the Transformers Division, and has obtained the certification  ISO 14001 in 2005.

We currently promote the high quality of our products and offer a personalised service for each one of our customers, in order to provide products that best adapt to their requirements, with fast delivery times.

Test Laboratory

We dispose of a test laboratory with qualified technical personnel and with the necessary instruments to carry out all the tests required by the standards UNE, IEC, IEEE, etc. applicable to the products that we manufacture.

Our laboratory has been authorized by the General Directorate of Energy, Mines and Industrial Safety, of the Department of Labor and Industry as “Officially authorized Auxiliary Metrology Laboratory”.


Laboratorio Electrotécnico has a staff of more than 40 people among managers, technicians, producers and commercials, as well as a wide network of delegates throughout Spain.

A committed, experienced, dynamic and in continuous training staff is one of our main assets for us.

Our goal is to achieve greater cooperation with our clients, listen to their initiatives and provide value, with the aim of developing customized proposals.

6 Reasons to choose us

We can give you many reasons that make us unique, but here are some to choose from!

Experienced professionals

We have a team of highly experienced professionals, with more than 20 years of experience in the sector, a high degree of specialization and in constant process of innovation. All this allows us to offer quality and guarantees backed by our customers.


Our R&D&TI department is constantly working on a research process that allows, on the one hand, to achieve innovations to apply to existing products, and on the other to develop prototypes of new ones.

Modern installations

We have new, adapted and modern facilities, which have been designed and equipped with the most modern technology in our sector, to be able to treat all our manufacturing processes with the maximum guarantees of success.

After-sales service and attention

Our goal is the maximum satisfaction of the customer. In Laboratorio Electrotécnico we offer personalized, agile and effective attention.

We take care of the environment

We are a company, certified by Bureau Veritas, in Environmental Management Systems, accredited with the issuance of the ISO 14001 certificate that confirms our commitment to environmental protection, through the management of environmental risks associated with our activity.

Quality certification

We are a company, certified by ENAC, in Quality Management Systems, accredited with the issuance of the ISO 9001 certificate that confirms our commitment to excellence, demonstrating quality and ability to meet the needs of customers.