Why is my transformer humming?
A transformer that hums isn't necessarily defective. An electrical transformer naturally produces a slight hum when it's operating. The laminations in the magnetic circuit expand and contract very slightly…
For several decades, LE COSINUS has established itself as a key player in the manufacture of high-quality electrical transformers. With our expertise and commitment to excellence, we offer products that meet the highest safety standards, including UL/CSA certifications. Whether you are a professional in the industrial, energy or infrastructure sectors, we are your ideal partner to design transformers that meet international safety and performance requirements.
UL Certification: A Global Safety Guarantee
Issued by Underwriters Laboratories (UL), UL certification is a global benchmark for safety. Established in 1894, this independent organization evaluates products to ensure end-user protection. Operating in 70 countries and with a network of 182 laboratories, UL conducts rigorous testing on more than 18,750 product categories, covering various industry sectors. These assessments ensure compliance with international safety standards.
CSA Certification: A Requirement for the Canadian Market
CSA certification attests that products meet specific safety standards in Canada. Together, the UL and CSA certifications are a testament to Le Cosinus commitment to providing quality products tailored to the requirements of the North American markets.
Strict Standards for Increased Safety
UL/CSA certified products offer enhanced safety by meeting the most demanding standards. These certifications include unannounced quarterly audits conducted by UL to ensure ongoing compliance. In the event of non-compliance, the certification is immediately withdrawn, ensuring full transparency. The global recognition of UL certifications strengthens the credibility of our products in international markets.
Consulter la fiche officielle de notre système d’isolation électrique certifié UL
A UL-certified electrical insulation system
At Le Cosinus, our UL certification applies to the electrical insulation system. It allows us to affix the official "Underwriters Registered" logo to our products, a symbol of their compliance and reliability. This guarantee of quality reflects our commitment to innovation, safety and customer satisfaction.
Our Three Pillars: Quality, Innovation and Sustainable Relationships
Since our creation, we have built our reputation on three fundamental axes, first of all the superior quality, transformers that comply with international standards, guaranteeing optimal performance. Constant innovation, Integration of the latest technological advances to meet the evolving needs of the market. As well as long-lasting customer relationships, working closely with our partners to design tailor-made solutions.
Reliable Solutions for All Industries
Grâce à nos certifications UL/CSA et notre expertise, nous proposons des solutions adaptées à divers besoins industriels, résidentiels ou commerciaux. Nos produits garantissent des performances fiables, une sécurité maximale et une qualité incomparable.
