The history of Merlin Gerin
Founded in Grenoble, France, Merlin Gerin’s innovative circuit breakers and electrical distribution technologies helped power the growth of industries and transform everyday lives.
Founded in 1920, Merlin Gerin initially specialised in medium and high-voltage oil circuit breakers. The company grew rapidly continuously investing in innovation until it was acquired by Schneider in 1992.
Milestone dates
- 1920
Paul-Louis Merlin and Gaston Gerin set up their electrical equipment business in Grenoble.
- 1921
Volta laboratory in Grenoble was built to carry out safety tests on high-voltage products and equipment, reaching up to 800 kV in the 1930s.
- 1929
Paul-Louis Merlin’s school for electrical apprenticeships opens in Grenoble.
- 1937
Merlin Gerin pioneers the pneumatic circuit breaker, more reliable and safer than oil alternatives.
- 1946
Merlin Gerin's first circuit breaker to cut 10,000 A and 15,000 V short circuits is launched.
- 1951
First series of low-voltage Compact circuit breakers is launched under Westinghouse licence.
- 1972
F32 low voltage miniature circuit breaker for homes is launched.
- 1974
Multi 9 modular protection system, forerunner to Acti 9 and Resi 9, is launched.
- 1986
MasterPact 800-6300 A moulded-case air circuit breaker is launched.
Schneider Electric history
Learn about our history and discover other brands that are part of Schneider Electric today.
Need help?
Product Selector
Quickly and easily find the right products and accessories for your applications.
Get a Quote
Start your sales enquiry online and an expert will connect with you.
Where to buy?
Easily find the nearest Schneider Electric distributor in your location.
Help Centre
Find support resources for all your needs, in one place.