for switching of electric circuits, especially for resistave loads and three-phase induction motors number of contacts VS120: 1 number of contacts VS220: 2 number of contacts VS420, VS425, VS440, VS463: 4 it is produced in confi guration of switching and breaking contacts: VS120: 10, 01 VS220: 20, 11, 02 VS420: 40, 31 VS425: 40, 31, 22, 04, 13 VS440: 40, 31, 22, 04 VS463: 40, 31, 22 protection IP 20 - on request we deliver covers that ensure protection IP 40 for all terminals DIN rail or panel mounting