Understanding Transformer Heating and Insulation Classes
At Le Cosinus, we have been manufacturing and supporting transformers, inductors, and DC power supplies for nearly 80 years. But behind every transformer, there is much more than just a…
Listening and expertise above all
Do you have a complex need? Let’s discuss it together. At Le Cosinus, we believe that a successful industrial project always begins with active listening. That’s why we prioritize personal interaction and close collaboration,…
UL/CSA and CSR: When Safety and Responsibility Go Hand in Hand
At Le Cosinus, compliance with standards and regulations is not an option. It is a requirement we hold ourselves to every day, in the service of our clients and our teams…
100% French manufacturing, a guarantee of trust
At Le Cosinus, we design and manufacture all of our electrical transformers in our workshop based in France. This decision—far from being insignificant—reflects our commitment to local and responsible production.…
French excellence at the heart of every transformer
At Le Cosinus, we firmly believe that the performance of an electrical transformer does not depend solely on its design and manufacturing. It depends first and foremost on the rigor of our…
The 6 mistakes to avoid when installing an electrical transformer
Installing an electrical transformer requires precision, expertise, and close attention to detail. Even a minor error can have significant consequences for safety, reliability, or service life…
Which transformer should I choose for the medical sector?
Electrical Safety: A Vital Requirement in the Medical Field In the medical field, electrical safety is not merely a technical criterion, but a fundamental requirement. In hospitals, laboratories, or…
Copper or aluminum: which conductor for your electrical transformer?
In the manufacture of electrical transformers, the choice of conductive material—copper or aluminum—is a strategic decision. This choice is not merely a matter of…
Transformer Maintenance: What Are the Warning Signs?
At Le Cosinus, a French manufacturer of electrical transformers for nearly 80 years, we have always made it a point of honor to ensure the reliability, durability, and performance of…
