NKK Switches YB26WCKW01-2CF02-JB-RO

Contact plating (finish) provides corrosion protection for base metals and optimizes the mechanical and electrical properties of the contact interfaces.

Current rating is the maximum current that a fuse will carry for an indefinite period without too much deterioration of the fuse element.

The current rating of a contact is defined as the current level that creates a certain temperature rise of the contact spring — usually 20°C or 30°C. Both electrical and thermal factors govern the heat created by the current.