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H01H37/74—Switches in which only the opening movement or only the closing movement of a contact is effected by heating or cooling
H01H37/76—Contact member actuated by melting of fusible material, actuated due to burning of combustible material or due to explosion of explosive material
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FR538672D1920-07-281921-07-25Dispositif pour la mise en circuit ou la mise hors circuit automatiques d'un courant électrique
ExpiredFR538672A
(fr)
Dispositif permettant d'envoyer dans un circuit électrique des courants intermittents de durée toujours égale séparés par des périodes d'interruption du courant demême durée