Source google image: http://1.bp.blogspot.com/-Sgyk1lqB35Q/Tkuyaa-HWZI/AAAAAAAAAuM/i8dO_AibQhI/s1600/schema+electrique+temporisateur+555.png
Schema electrique relais temporisé
Source google image: http://1.bp.blogspot.com/-Sgyk1lqB35Q/Tkuyaa-HWZI/AAAAAAAAAuM/i8dO_AibQhI/s1600/schema+electrique+temporisateur+555.png