40 x INTERRUTTORE A CANNA magnetico normalmente aperto/chiuso 3p 3 pin 10w B8
Reed Glass Magnetic Switches N/O N/C SPDT 300DC 10W 20MM normally open closed b8 - YouTube. 40 Pieces - Reed switch. This is a very rare reed switch. You can use this N/C or N/O just but changing the connection.