Button White 10A 250V Compatible Matix The switch and the button are very similar to each other, even in their application. The main difference is that the button, once released, returns to its initial position. The button can have two positions, NA (normally open) and NC (normally closed) depending on the use to be made. If it is normally open, it means that by pressing we make the current circulate, if, on the other hand, it is normally closed by pressing the button, we interrupt the current. The button is mostly used for the bell (ringtone), for opening gates, doors, or for switch on a lamp from several points via relay.  Technical characteristics Material: Plastic Color: White  Compatibility: BTicino Matix EAN: 6970597465138 Producer code: 505B / Mtx