The Micro ISO Relay parts have been designed to prevent dust entry.rnOpen type for easy air blowing during the production process.rnUsing Material that have high Electrical Conductivity and Minimized distance of an Electric Current pathway.rnAppropriate contact gap to enable Relays to resist the action of Electric Arc.rnMaterial that has high Electric Arc Resistance used for Contacts.rnProduct manufacturing at Dust free Environment.