Manufacturers    ​​  Sadtem


The French leader and world renown.

​Founded in 1929 and located in Douai, SADTEM is an independent private company, specialised in the manufacture of metering and protection transformers for medium voltage, indoor and outdoor applications.

Recognised throughout the world for its range of products, its technical expertise in design and manufacturing as well as its quality of service, SADTEM is in the unique position of being able to provide a quick, standardised and specific response to every request.

The experience of its engineers coupled with the effectiveness of its IT systems (calculation, design, production, testing) makes it possible to supply sophisticated products to demanding users all around the world.

89224

transformers manufactured for 5 years

83

% of export sales

54

countries delivered in 2021

90

employees at 4 sites in France

19

% increase in gross sales in 2021​



Quality control and customer satisfaction are the best investments we can make.

Our range of electrical transformers

Voltage transformers - Indoor

Discover our entire range of indoor voltage transformers

Voltage transformers - Outdoor

Discover our entire range of outdoor voltage transformers

Current transformers - Indoor

Discover our entire range of outdoor voltage transformers

Current transformers - Outdoor

Discover our entire range of outdoor voltage transformers

Combined units (VT + CT)

Discover our entire range of combined transformers (VT + CT)

 LV Ring type CTs

Discover our entire range of LV ring type current transformers

Need a quotation? Question(s) ?​

Contact us if you have any questions about our company or our services.
Our specialists are ready to answer your questions, every day of the week from 08:00 to 17:00.