Source google image: https://schema-electrique.net/images/schema%20telerupteur%20bouton%20poussoir%20voyant%20temoin_cs10.png
Schema bouton poussoir pour gache electrique
Source google image: https://schema-electrique.net/images/schema%20telerupteur%20bouton%20poussoir%20voyant%20temoin_cs10.png