The Schmersal NDTP30SW mushroom button is round and has a membrane type sealing type and lip gaskets. It is made of plastic and the colour of the operating element is black and that of the front ring and bellows is silver and white respectively.
Standards: EN 60947-5-1, IEC/EN 60947-1 Mounting: Mounting flange ELM Protection class: IP67 & IP69K
