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GECSA Conductores Y Conexiones Especiales S.A.

P.O. Box 53, 48180 Loiu (Vizcaya)
Larrondo Kalea, 12, 48180 Loiu (Vizcaya)

Hall map

METEC 2019 hall map (Hall 4): stand G42

Fairground map

METEC 2019 fairground map: Hall 4

Our range of products

Product categories

  • 03  Plant and equipment for steel making
  • 03.05  Components, ancillary equipment

Components, ancillary equipment

  • 04  Plant and equipment for non-ferrous metal production
  • 04.06  Components, ancillary equipment

Components, ancillary equipment

  • 10  Electrical engineering and process control technology
  • 10.01  Electrical equipment

Electrical equipment

  • 10  Electrical engineering and process control technology
  • 10.02  Process control technology and automation

Process control technology and automation

  • 10  Electrical engineering and process control technology
  • 10.03  Data processing and software

Data processing and software

  • 10  Electrical engineering and process control technology
  • 10.04  Engineering and technical support

Engineering and technical support

Our products

Product category: Components, ancillary equipment, Components, ancillary equipment


The conductors department specializes in the design, manufacture and assembly of special conductors (mainly tailor-made) intended primarily for high intensities. Gecsa specializes in two types of materials: COPPER and ALUMINUM, one of its main strengths being the welding of both materials. Of special difficulty and shortage of welders prepared is the welding of copper.

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Product category: Process control technology and automation, Data processing and software, Engineering and technical support


GECSA Automation develops its activity as plant optimization and control systems engineering.

GECSA consideres particularly important the relationships with the customer, having special interest in communication with all departments involved in an industrial project (Management, Engineering, Production, Maintenance,…) to become a part of the working team, with the final objective of provide the best solution to their needs.

Through an extensive experience, GECSA has an extensive knowledge of industrial processes, which allows to advise the most appropriate solution in each case. His proposals are the best in both hardware and software, and not subject to specific brands.

GECSA with the strategy of continuous improvement, their technicians are continuously trained, improving their technical knowledge and capabilities, giving them resources to solve problems and common needs of our customers.

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Product category: Electrical equipment, Engineering and technical support

Electrical engineering

GECSA Electrical Engineering develops projects, supply the equipment and carry out the installation and start up of medium voltage circuit, according to customer needs. GECSA also provides an integral solution to any general or specific electrical problem in steel plants, foundries and electrolysis plants, which we have, extensive experience.

We have the latest tools and calculation software. Our projects are designed fully in 3D, which allows and facilitates better communication with our customers, building and assembly process more accurate.

GECSA Electrical Engineering works in both new installations and in the remodelling of facilities in operation, and support through predictive maintenance of transformers or in the resolution of operational problems and improvements. GECSA industry knowledge allows us to work with agility and adapt to the requirements of various industrial processes.

The services include the performance of projects, design, supply and installation of electrical equipment:

  • Disconnections and Earthen Switches, Vacuum Circuit-Breakers for electric arc furnace.
  • Measurement, analysis, study and mitigation of problems of power quality, harmonics and flicker.
  • Reactive power compensators for power factor correction.
  • Surge arrester.
  • Study of full electric power system of the furnace. Calculating the secondary circuit impedances electrical furnacefeed.
  • Series reactors for arc furnace.
  • Passive filters.
  • Power cells for arc furnace.
  • Electric power circuit of an electric arc furnace (turnkey project).
  • RC circuits for transient suppression and surge protection.
  • Predictive maintenance of power transformers.
  • Intelligent system for monitoring, management and control of demand.
  • Maintenance staff training.

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About us

Company portrait

GECSA has more than 30 years of experience in the steel-making plants, ferro-alloys plants, foundry, electrolytic plants and more recently in electrical machinery manufacturers, automation, control systems and electrical engineering.

Founded in 1987, has as main purpose, the design, manufacturing, supply, assembly and start-up of electrical engineering, adapted to the necessities of our clients, in low and medium voltage.

GECSA operates principally in three business areas:

  • High Current Conductors.
  • Turn Key Projects in Automation and process control, management and Industrial maintenance.
  • Electrical Engineering Projects.
  • The company has a high qualified staff for the design and manufacture of electrical and automation systems, with our own technology and facilities.
GECSA workshops and offices, with a total cover surface of 2.400 m2, are located in the north of Spain, in Larrondo-Loiu, 7 km from Bilbao downtown, less than 1 km from its International airport and next to train station.